20146090900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499903}}^1$

素因数の和:499961

約数の個数: 72

約数和(自身を含む): 48598667264

約数和(自身を除く): 28452576364

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 8060, 10075, 20150, 40300, 499903, 999806, 1999612, 2499515, 4999030, 6498739, 9998060, 12497575, 12997478, 15496993, 24995150, 25994956, 30993986, 32493695, 49990300, 61987972, 64987390, 77484965, 129974780, 154969930, 162468475, 201460909, 309939860, 324936950, 387424825, 402921818, 649873900, 774849650, 805843636, 1007304545, 1549699300, 2014609090, 4029218180, 5036522725, 10073045450, 20146090900]

約数ペア:

[(1, 20146090900), (2, 10073045450), (4, 5036522725), (5, 4029218180), (10, 2014609090), (13, 1549699300), (20, 1007304545), (25, 805843636), (26, 774849650), (31, 649873900), (50, 402921818), (52, 387424825), (62, 324936950), (65, 309939860), (100, 201460909), (124, 162468475), (130, 154969930), (155, 129974780), (260, 77484965), (310, 64987390), (325, 61987972), (403, 49990300), (620, 32493695), (650, 30993986), (775, 25994956), (806, 24995150), (1300, 15496993), (1550, 12997478), (1612, 12497575), (2015, 9998060), (3100, 6498739), (4030, 4999030), (8060, 2499515), (10075, 1999612), (20150, 999806), (40300, 499903)]