20512017505

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{7247}}^1$

素因数の和:7414

約数の個数: 64

約数和(自身を含む): 30660083712

約数和(自身を除く): 10148066207

約数列:

[1, 5, 7, 17, 35, 67, 71, 85, 119, 335, 355, 469, 497, 595, 1139, 1207, 2345, 2485, 4757, 5695, 6035, 7247, 7973, 8449, 23785, 33299, 36235, 39865, 42245, 50729, 80869, 123199, 166495, 253645, 404345, 485549, 514537, 566083, 615995, 862393, 2427745, 2572685, 2830415, 3398843, 3601759, 4311965, 8254333, 8747129, 16994215, 18008795, 34473979, 41271665, 43735645, 57780331, 61229903, 172369895, 241317853, 288901655, 306149515, 586057643, 1206589265, 2930288215, 4102403501, 20512017505]

約数ペア:

[(1, 20512017505), (5, 4102403501), (7, 2930288215), (17, 1206589265), (35, 586057643), (67, 306149515), (71, 288901655), (85, 241317853), (119, 172369895), (335, 61229903), (355, 57780331), (469, 43735645), (497, 41271665), (595, 34473979), (1139, 18008795), (1207, 16994215), (2345, 8747129), (2485, 8254333), (4757, 4311965), (5695, 3601759), (6035, 3398843), (7247, 2830415), (7973, 2572685), (8449, 2427745), (23785, 862393), (33299, 615995), (36235, 566083), (39865, 514537), (42245, 485549), (50729, 404345), (80869, 253645), (123199, 166495)]