15657480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 55710720

約数和(自身を除く): 40053240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 60, 61, 62, 69, 72, 90, 92, 93, 115, 120, 122, 124, 138, 155, 180, 183, 184, 186, 207, 230, 244, 248, 276, 279, 305, 310, 345, 360, 366, 372, 414, 460, 465, 488, 549, 552, 558, 610, 620, 690, 713, 732, 744, 828, 915, 920, 930, 1035, 1098, 1116, 1220, 1240, 1380, 1395, 1403, 1426, 1464, 1656, 1830, 1860, 1891, 2070, 2139, 2196, 2232, 2440, 2745, 2760, 2790, 2806, 2852, 3565, 3660, 3720, 3782, 4140, 4209, 4278, 4392, 5490, 5580, 5612, 5673, 5704, 6417, 7015, 7130, 7320, 7564, 8280, 8418, 8556, 9455, 10695, 10980, 11160, 11224, 11346, 12627, 12834, 14030, 14260, 15128, 16836, 17019, 17112, 18910, 21045, 21390, 21960, 22692, 25254, 25668, 28060, 28365, 28520, 32085, 33672, 34038, 37820, 42090, 42780, 43493, 45384, 50508, 51336, 56120, 56730, 63135, 64170, 68076, 75640, 84180, 85095, 85560, 86986, 101016, 113460, 126270, 128340, 130479, 136152, 168360, 170190, 173972, 217465, 226920, 252540, 256680, 260958, 340380, 347944, 391437, 434930, 505080, 521916, 652395, 680760, 782874, 869860, 1043832, 1304790, 1565748, 1739720, 1957185, 2609580, 3131496, 3914370, 5219160, 7828740, 15657480]

約数ペア:

[(1, 15657480), (2, 7828740), (3, 5219160), (4, 3914370), (5, 3131496), (6, 2609580), (8, 1957185), (9, 1739720), (10, 1565748), (12, 1304790), (15, 1043832), (18, 869860), (20, 782874), (23, 680760), (24, 652395), (30, 521916), (31, 505080), (36, 434930), (40, 391437), (45, 347944), (46, 340380), (60, 260958), (61, 256680), (62, 252540), (69, 226920), (72, 217465), (90, 173972), (92, 170190), (93, 168360), (115, 136152), (120, 130479), (122, 128340), (124, 126270), (138, 113460), (155, 101016), (180, 86986), (183, 85560), (184, 85095), (186, 84180), (207, 75640), (230, 68076), (244, 64170), (248, 63135), (276, 56730), (279, 56120), (305, 51336), (310, 50508), (345, 45384), (360, 43493), (366, 42780), (372, 42090), (414, 37820), (460, 34038), (465, 33672), (488, 32085), (549, 28520), (552, 28365), (558, 28060), (610, 25668), (620, 25254), (690, 22692), (713, 21960), (732, 21390), (744, 21045), (828, 18910), (915, 17112), (920, 17019), (930, 16836), (1035, 15128), (1098, 14260), (1116, 14030), (1220, 12834), (1240, 12627), (1380, 11346), (1395, 11224), (1403, 11160), (1426, 10980), (1464, 10695), (1656, 9455), (1830, 8556), (1860, 8418), (1891, 8280), (2070, 7564), (2139, 7320), (2196, 7130), (2232, 7015), (2440, 6417), (2745, 5704), (2760, 5673), (2790, 5612), (2806, 5580), (2852, 5490), (3565, 4392), (3660, 4278), (3720, 4209), (3782, 4140)]