2165500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 4874688

約数和(自身を除く): 2709188

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 71, 100, 122, 125, 142, 244, 250, 284, 305, 355, 500, 610, 710, 1220, 1420, 1525, 1775, 3050, 3550, 4331, 6100, 7100, 7625, 8662, 8875, 15250, 17324, 17750, 21655, 30500, 35500, 43310, 86620, 108275, 216550, 433100, 541375, 1082750, 2165500]

約数ペア:

[(1, 2165500), (2, 1082750), (4, 541375), (5, 433100), (10, 216550), (20, 108275), (25, 86620), (50, 43310), (61, 35500), (71, 30500), (100, 21655), (122, 17750), (125, 17324), (142, 15250), (244, 8875), (250, 8662), (284, 7625), (305, 7100), (355, 6100), (500, 4331), (610, 3550), (710, 3050), (1220, 1775), (1420, 1525)]