78015720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:427

約数の個数: 128

約数和(自身を含む): 250387200

約数和(自身を除く): 172371480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 167, 170, 204, 229, 255, 334, 340, 408, 458, 501, 510, 668, 680, 687, 835, 916, 1002, 1020, 1145, 1336, 1374, 1670, 1832, 2004, 2040, 2290, 2505, 2748, 2839, 3340, 3435, 3893, 4008, 4580, 5010, 5496, 5678, 6680, 6870, 7786, 8517, 9160, 10020, 11356, 11679, 13740, 14195, 15572, 17034, 19465, 20040, 22712, 23358, 27480, 28390, 31144, 34068, 38243, 38930, 42585, 46716, 56780, 58395, 68136, 76486, 77860, 85170, 93432, 113560, 114729, 116790, 152972, 155720, 170340, 191215, 229458, 233580, 305944, 340680, 382430, 458916, 467160, 573645, 650131, 764860, 917832, 1147290, 1300262, 1529720, 1950393, 2294580, 2600524, 3250655, 3900786, 4589160, 5201048, 6501310, 7801572, 9751965, 13002620, 15603144, 19503930, 26005240, 39007860, 78015720]

約数ペア:

[(1, 78015720), (2, 39007860), (3, 26005240), (4, 19503930), (5, 15603144), (6, 13002620), (8, 9751965), (10, 7801572), (12, 6501310), (15, 5201048), (17, 4589160), (20, 3900786), (24, 3250655), (30, 2600524), (34, 2294580), (40, 1950393), (51, 1529720), (60, 1300262), (68, 1147290), (85, 917832), (102, 764860), (120, 650131), (136, 573645), (167, 467160), (170, 458916), (204, 382430), (229, 340680), (255, 305944), (334, 233580), (340, 229458), (408, 191215), (458, 170340), (501, 155720), (510, 152972), (668, 116790), (680, 114729), (687, 113560), (835, 93432), (916, 85170), (1002, 77860), (1020, 76486), (1145, 68136), (1336, 58395), (1374, 56780), (1670, 46716), (1832, 42585), (2004, 38930), (2040, 38243), (2290, 34068), (2505, 31144), (2748, 28390), (2839, 27480), (3340, 23358), (3435, 22712), (3893, 20040), (4008, 19465), (4580, 17034), (5010, 15572), (5496, 14195), (5678, 13740), (6680, 11679), (6870, 11356), (7786, 10020), (8517, 9160)]