28491480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 256

約数和(自身を含む): 105062400

約数和(自身を除く): 76570920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 31, 36, 37, 40, 45, 46, 54, 60, 62, 69, 72, 74, 90, 92, 93, 108, 111, 115, 120, 124, 135, 138, 148, 155, 180, 184, 185, 186, 207, 216, 222, 230, 248, 270, 276, 279, 296, 310, 333, 345, 360, 370, 372, 414, 444, 460, 465, 540, 552, 555, 558, 620, 621, 666, 690, 713, 740, 744, 828, 837, 851, 888, 920, 930, 999, 1035, 1080, 1110, 1116, 1147, 1240, 1242, 1332, 1380, 1395, 1426, 1480, 1656, 1665, 1674, 1702, 1860, 1998, 2070, 2139, 2220, 2232, 2294, 2484, 2553, 2664, 2760, 2790, 2852, 3105, 3330, 3348, 3404, 3441, 3565, 3720, 3996, 4140, 4185, 4255, 4278, 4440, 4588, 4968, 4995, 5106, 5580, 5704, 5735, 6210, 6417, 6660, 6696, 6808, 6882, 7130, 7659, 7992, 8280, 8370, 8510, 8556, 9176, 9990, 10212, 10323, 10695, 11160, 11470, 12420, 12765, 12834, 13320, 13764, 14260, 15318, 16740, 17020, 17112, 17205, 19251, 19980, 20424, 20646, 21390, 22940, 22977, 24840, 25530, 25668, 26381, 27528, 28520, 30636, 30969, 32085, 33480, 34040, 34410, 38295, 38502, 39960, 41292, 42780, 45880, 45954, 51060, 51336, 51615, 52762, 61272, 61938, 64170, 68820, 76590, 77004, 79143, 82584, 85560, 91908, 96255, 102120, 103230, 105524, 114885, 123876, 128340, 131905, 137640, 153180, 154008, 154845, 158286, 183816, 192510, 206460, 211048, 229770, 237429, 247752, 256680, 263810, 306360, 309690, 316572, 385020, 395715, 412920, 459540, 474858, 527620, 619380, 633144, 712287, 770040, 791430, 919080, 949716, 1055240, 1187145, 1238760, 1424574, 1582860, 1899432, 2374290, 2849148, 3165720, 3561435, 4748580, 5698296, 7122870, 9497160, 14245740, 28491480]

約数ペア:

[(1, 28491480), (2, 14245740), (3, 9497160), (4, 7122870), (5, 5698296), (6, 4748580), (8, 3561435), (9, 3165720), (10, 2849148), (12, 2374290), (15, 1899432), (18, 1582860), (20, 1424574), (23, 1238760), (24, 1187145), (27, 1055240), (30, 949716), (31, 919080), (36, 791430), (37, 770040), (40, 712287), (45, 633144), (46, 619380), (54, 527620), (60, 474858), (62, 459540), (69, 412920), (72, 395715), (74, 385020), (90, 316572), (92, 309690), (93, 306360), (108, 263810), (111, 256680), (115, 247752), (120, 237429), (124, 229770), (135, 211048), (138, 206460), (148, 192510), (155, 183816), (180, 158286), (184, 154845), (185, 154008), (186, 153180), (207, 137640), (216, 131905), (222, 128340), (230, 123876), (248, 114885), (270, 105524), (276, 103230), (279, 102120), (296, 96255), (310, 91908), (333, 85560), (345, 82584), (360, 79143), (370, 77004), (372, 76590), (414, 68820), (444, 64170), (460, 61938), (465, 61272), (540, 52762), (552, 51615), (555, 51336), (558, 51060), (620, 45954), (621, 45880), (666, 42780), (690, 41292), (713, 39960), (740, 38502), (744, 38295), (828, 34410), (837, 34040), (851, 33480), (888, 32085), (920, 30969), (930, 30636), (999, 28520), (1035, 27528), (1080, 26381), (1110, 25668), (1116, 25530), (1147, 24840), (1240, 22977), (1242, 22940), (1332, 21390), (1380, 20646), (1395, 20424), (1426, 19980), (1480, 19251), (1656, 17205), (1665, 17112), (1674, 17020), (1702, 16740), (1860, 15318), (1998, 14260), (2070, 13764), (2139, 13320), (2220, 12834), (2232, 12765), (2294, 12420), (2484, 11470), (2553, 11160), (2664, 10695), (2760, 10323), (2790, 10212), (2852, 9990), (3105, 9176), (3330, 8556), (3348, 8510), (3404, 8370), (3441, 8280), (3565, 7992), (3720, 7659), (3996, 7130), (4140, 6882), (4185, 6808), (4255, 6696), (4278, 6660), (4440, 6417), (4588, 6210), (4968, 5735), (4995, 5704), (5106, 5580)]