18390960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 240

約数和(自身を含む): 73120320

約数和(自身を除く): 54729360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 89, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 178, 180, 205, 210, 240, 246, 252, 267, 280, 287, 315, 328, 336, 356, 360, 369, 410, 420, 445, 492, 504, 534, 560, 574, 615, 623, 630, 656, 712, 720, 738, 801, 820, 840, 861, 890, 984, 1008, 1068, 1148, 1230, 1246, 1260, 1335, 1424, 1435, 1476, 1602, 1640, 1680, 1722, 1780, 1845, 1869, 1968, 2136, 2296, 2460, 2492, 2520, 2583, 2670, 2870, 2952, 3115, 3204, 3280, 3444, 3560, 3649, 3690, 3738, 4005, 4272, 4305, 4592, 4920, 4984, 5040, 5166, 5340, 5607, 5740, 5904, 6230, 6408, 6888, 7120, 7298, 7380, 7476, 8010, 8610, 9345, 9840, 9968, 10332, 10680, 10947, 11214, 11480, 12460, 12816, 12915, 13776, 14596, 14760, 14952, 16020, 17220, 18245, 18690, 20664, 21360, 21894, 22428, 22960, 24920, 25543, 25830, 28035, 29192, 29520, 29904, 32040, 32841, 34440, 36490, 37380, 41328, 43788, 44856, 49840, 51086, 51660, 54735, 56070, 58384, 64080, 65682, 68880, 72980, 74760, 76629, 87576, 89712, 102172, 103320, 109470, 112140, 127715, 131364, 145960, 149520, 153258, 164205, 175152, 204344, 206640, 218940, 224280, 229887, 255430, 262728, 291920, 306516, 328410, 383145, 408688, 437880, 448560, 459774, 510860, 525456, 613032, 656820, 766290, 875760, 919548, 1021720, 1149435, 1226064, 1313640, 1532580, 1839096, 2043440, 2298870, 2627280, 3065160, 3678192, 4597740, 6130320, 9195480, 18390960]

約数ペア:

[(1, 18390960), (2, 9195480), (3, 6130320), (4, 4597740), (5, 3678192), (6, 3065160), (7, 2627280), (8, 2298870), (9, 2043440), (10, 1839096), (12, 1532580), (14, 1313640), (15, 1226064), (16, 1149435), (18, 1021720), (20, 919548), (21, 875760), (24, 766290), (28, 656820), (30, 613032), (35, 525456), (36, 510860), (40, 459774), (41, 448560), (42, 437880), (45, 408688), (48, 383145), (56, 328410), (60, 306516), (63, 291920), (70, 262728), (72, 255430), (80, 229887), (82, 224280), (84, 218940), (89, 206640), (90, 204344), (105, 175152), (112, 164205), (120, 153258), (123, 149520), (126, 145960), (140, 131364), (144, 127715), (164, 112140), (168, 109470), (178, 103320), (180, 102172), (205, 89712), (210, 87576), (240, 76629), (246, 74760), (252, 72980), (267, 68880), (280, 65682), (287, 64080), (315, 58384), (328, 56070), (336, 54735), (356, 51660), (360, 51086), (369, 49840), (410, 44856), (420, 43788), (445, 41328), (492, 37380), (504, 36490), (534, 34440), (560, 32841), (574, 32040), (615, 29904), (623, 29520), (630, 29192), (656, 28035), (712, 25830), (720, 25543), (738, 24920), (801, 22960), (820, 22428), (840, 21894), (861, 21360), (890, 20664), (984, 18690), (1008, 18245), (1068, 17220), (1148, 16020), (1230, 14952), (1246, 14760), (1260, 14596), (1335, 13776), (1424, 12915), (1435, 12816), (1476, 12460), (1602, 11480), (1640, 11214), (1680, 10947), (1722, 10680), (1780, 10332), (1845, 9968), (1869, 9840), (1968, 9345), (2136, 8610), (2296, 8010), (2460, 7476), (2492, 7380), (2520, 7298), (2583, 7120), (2670, 6888), (2870, 6408), (2952, 6230), (3115, 5904), (3204, 5740), (3280, 5607), (3444, 5340), (3560, 5166), (3649, 5040), (3690, 4984), (3738, 4920), (4005, 4592), (4272, 4305)]