28745080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 81648000

約数和(自身を除く): 52902920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 53, 56, 65, 70, 91, 104, 106, 130, 140, 149, 182, 212, 260, 265, 280, 298, 364, 371, 424, 455, 520, 530, 596, 689, 728, 742, 745, 910, 1043, 1060, 1192, 1378, 1484, 1490, 1820, 1855, 1937, 2086, 2120, 2756, 2968, 2980, 3445, 3640, 3710, 3874, 4172, 4823, 5215, 5512, 5960, 6890, 7420, 7748, 7897, 8344, 9646, 9685, 10430, 13559, 13780, 14840, 15496, 15794, 19292, 19370, 20860, 24115, 27118, 27560, 31588, 38584, 38740, 39485, 41720, 48230, 54236, 55279, 63176, 67795, 77480, 78970, 96460, 102661, 108472, 110558, 135590, 157940, 192920, 205322, 221116, 271180, 276395, 315880, 410644, 442232, 513305, 542360, 552790, 718627, 821288, 1026610, 1105580, 1437254, 2053220, 2211160, 2874508, 3593135, 4106440, 5749016, 7186270, 14372540, 28745080]

約数ペア:

[(1, 28745080), (2, 14372540), (4, 7186270), (5, 5749016), (7, 4106440), (8, 3593135), (10, 2874508), (13, 2211160), (14, 2053220), (20, 1437254), (26, 1105580), (28, 1026610), (35, 821288), (40, 718627), (52, 552790), (53, 542360), (56, 513305), (65, 442232), (70, 410644), (91, 315880), (104, 276395), (106, 271180), (130, 221116), (140, 205322), (149, 192920), (182, 157940), (212, 135590), (260, 110558), (265, 108472), (280, 102661), (298, 96460), (364, 78970), (371, 77480), (424, 67795), (455, 63176), (520, 55279), (530, 54236), (596, 48230), (689, 41720), (728, 39485), (742, 38740), (745, 38584), (910, 31588), (1043, 27560), (1060, 27118), (1192, 24115), (1378, 20860), (1484, 19370), (1490, 19292), (1820, 15794), (1855, 15496), (1937, 14840), (2086, 13780), (2120, 13559), (2756, 10430), (2968, 9685), (2980, 9646), (3445, 8344), (3640, 7897), (3710, 7748), (3874, 7420), (4172, 6890), (4823, 5960), (5215, 5512)]