2016605900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{431}}^1\times {\mathrm{659}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 4454714880

約数和(自身を除く): 2438108980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 431, 659, 710, 862, 1318, 1420, 1724, 1775, 2155, 2636, 3295, 3550, 4310, 6590, 7100, 8620, 10775, 13180, 16475, 21550, 30601, 32950, 43100, 46789, 61202, 65900, 93578, 122404, 153005, 187156, 233945, 284029, 306010, 467890, 568058, 612020, 765025, 935780, 1136116, 1169725, 1420145, 1530050, 2339450, 2840290, 3060100, 4678900, 5680580, 7100725, 14201450, 20166059, 28402900, 40332118, 80664236, 100830295, 201660590, 403321180, 504151475, 1008302950, 2016605900]

約数ペア:

[(1, 2016605900), (2, 1008302950), (4, 504151475), (5, 403321180), (10, 201660590), (20, 100830295), (25, 80664236), (50, 40332118), (71, 28402900), (100, 20166059), (142, 14201450), (284, 7100725), (355, 5680580), (431, 4678900), (659, 3060100), (710, 2840290), (862, 2339450), (1318, 1530050), (1420, 1420145), (1724, 1169725), (1775, 1136116), (2155, 935780), (2636, 765025), (3295, 612020), (3550, 568058), (4310, 467890), (6590, 306010), (7100, 284029), (8620, 233945), (10775, 187156), (13180, 153005), (16475, 122404), (21550, 93578), (30601, 65900), (32950, 61202), (43100, 46789)]