2907021160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{2011}}^1$

素因数の和:2602

約数の個数: 64

約数和(自身を含む): 6649257600

約数和(自身を除く): 3742236440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 509, 568, 710, 1018, 1420, 2011, 2036, 2545, 2840, 4022, 4072, 5090, 8044, 10055, 10180, 16088, 20110, 20360, 36139, 40220, 72278, 80440, 142781, 144556, 180695, 285562, 289112, 361390, 571124, 713905, 722780, 1023599, 1142248, 1427810, 1445560, 2047198, 2855620, 4094396, 5117995, 5711240, 8188792, 10235990, 20471980, 40943960, 72675529, 145351058, 290702116, 363377645, 581404232, 726755290, 1453510580, 2907021160]

約数ペア:

[(1, 2907021160), (2, 1453510580), (4, 726755290), (5, 581404232), (8, 363377645), (10, 290702116), (20, 145351058), (40, 72675529), (71, 40943960), (142, 20471980), (284, 10235990), (355, 8188792), (509, 5711240), (568, 5117995), (710, 4094396), (1018, 2855620), (1420, 2047198), (2011, 1445560), (2036, 1427810), (2545, 1142248), (2840, 1023599), (4022, 722780), (4072, 713905), (5090, 571124), (8044, 361390), (10055, 289112), (10180, 285562), (16088, 180695), (20110, 144556), (20360, 142781), (36139, 80440), (40220, 72278)]