20121664100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{93199}}^1$

素因数の和:93357

約数の個数: 72

約数和(自身を含む): 46597017600

約数和(自身を除く): 26475353500

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 127, 170, 254, 340, 425, 508, 635, 850, 1270, 1700, 2159, 2540, 3175, 4318, 6350, 8636, 10795, 12700, 21590, 43180, 53975, 93199, 107950, 186398, 215900, 372796, 465995, 931990, 1584383, 1863980, 2329975, 3168766, 4659950, 6337532, 7921915, 9319900, 11836273, 15843830, 23672546, 31687660, 39609575, 47345092, 59181365, 79219150, 118362730, 158438300, 201216641, 236725460, 295906825, 402433282, 591813650, 804866564, 1006083205, 1183627300, 2012166410, 4024332820, 5030416025, 10060832050, 20121664100]

約数ペア:

[(1, 20121664100), (2, 10060832050), (4, 5030416025), (5, 4024332820), (10, 2012166410), (17, 1183627300), (20, 1006083205), (25, 804866564), (34, 591813650), (50, 402433282), (68, 295906825), (85, 236725460), (100, 201216641), (127, 158438300), (170, 118362730), (254, 79219150), (340, 59181365), (425, 47345092), (508, 39609575), (635, 31687660), (850, 23672546), (1270, 15843830), (1700, 11836273), (2159, 9319900), (2540, 7921915), (3175, 6337532), (4318, 4659950), (6350, 3168766), (8636, 2329975), (10795, 1863980), (12700, 1584383), (21590, 931990), (43180, 465995), (53975, 372796), (93199, 215900), (107950, 186398)]