20882160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 240

約数和(自身を含む): 79619904

約数和(自身を除く): 58737744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 48, 52, 60, 65, 69, 72, 78, 80, 90, 92, 97, 104, 115, 117, 120, 130, 138, 144, 156, 180, 184, 194, 195, 207, 208, 230, 234, 240, 260, 276, 291, 299, 312, 345, 360, 368, 388, 390, 414, 460, 468, 485, 520, 552, 582, 585, 598, 624, 690, 720, 776, 780, 828, 873, 897, 920, 936, 970, 1035, 1040, 1104, 1164, 1170, 1196, 1261, 1380, 1455, 1495, 1552, 1560, 1656, 1746, 1794, 1840, 1872, 1940, 2070, 2231, 2328, 2340, 2392, 2522, 2691, 2760, 2910, 2990, 3120, 3312, 3492, 3588, 3783, 3880, 4140, 4365, 4462, 4485, 4656, 4680, 4784, 5044, 5382, 5520, 5820, 5980, 6305, 6693, 6984, 7176, 7566, 7760, 8280, 8730, 8924, 8970, 9360, 10088, 10764, 11155, 11349, 11640, 11960, 12610, 13386, 13455, 13968, 14352, 15132, 16560, 17460, 17848, 17940, 18915, 20079, 20176, 21528, 22310, 22698, 23280, 23920, 25220, 26772, 26910, 29003, 30264, 33465, 34920, 35696, 35880, 37830, 40158, 43056, 44620, 45396, 50440, 53544, 53820, 56745, 58006, 60528, 66930, 69840, 71760, 75660, 80316, 87009, 89240, 90792, 100395, 100880, 107088, 107640, 113490, 116012, 133860, 145015, 151320, 160632, 174018, 178480, 181584, 200790, 215280, 226980, 232024, 261027, 267720, 290030, 302640, 321264, 348036, 401580, 435045, 453960, 464048, 522054, 535440, 580060, 696072, 803160, 870090, 907920, 1044108, 1160120, 1305135, 1392144, 1606320, 1740180, 2088216, 2320240, 2610270, 3480360, 4176432, 5220540, 6960720, 10441080, 20882160]

約数ペア:

[(1, 20882160), (2, 10441080), (3, 6960720), (4, 5220540), (5, 4176432), (6, 3480360), (8, 2610270), (9, 2320240), (10, 2088216), (12, 1740180), (13, 1606320), (15, 1392144), (16, 1305135), (18, 1160120), (20, 1044108), (23, 907920), (24, 870090), (26, 803160), (30, 696072), (36, 580060), (39, 535440), (40, 522054), (45, 464048), (46, 453960), (48, 435045), (52, 401580), (60, 348036), (65, 321264), (69, 302640), (72, 290030), (78, 267720), (80, 261027), (90, 232024), (92, 226980), (97, 215280), (104, 200790), (115, 181584), (117, 178480), (120, 174018), (130, 160632), (138, 151320), (144, 145015), (156, 133860), (180, 116012), (184, 113490), (194, 107640), (195, 107088), (207, 100880), (208, 100395), (230, 90792), (234, 89240), (240, 87009), (260, 80316), (276, 75660), (291, 71760), (299, 69840), (312, 66930), (345, 60528), (360, 58006), (368, 56745), (388, 53820), (390, 53544), (414, 50440), (460, 45396), (468, 44620), (485, 43056), (520, 40158), (552, 37830), (582, 35880), (585, 35696), (598, 34920), (624, 33465), (690, 30264), (720, 29003), (776, 26910), (780, 26772), (828, 25220), (873, 23920), (897, 23280), (920, 22698), (936, 22310), (970, 21528), (1035, 20176), (1040, 20079), (1104, 18915), (1164, 17940), (1170, 17848), (1196, 17460), (1261, 16560), (1380, 15132), (1455, 14352), (1495, 13968), (1552, 13455), (1560, 13386), (1656, 12610), (1746, 11960), (1794, 11640), (1840, 11349), (1872, 11155), (1940, 10764), (2070, 10088), (2231, 9360), (2328, 8970), (2340, 8924), (2392, 8730), (2522, 8280), (2691, 7760), (2760, 7566), (2910, 7176), (2990, 6984), (3120, 6693), (3312, 6305), (3492, 5980), (3588, 5820), (3783, 5520), (3880, 5382), (4140, 5044), (4365, 4784), (4462, 4680), (4485, 4656)]