1982500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:98

約数の個数: 60

約数和(自身を含む): 4745356

約数和(自身を除く): 2762856

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 125, 130, 244, 250, 260, 305, 325, 500, 610, 625, 650, 793, 1220, 1250, 1300, 1525, 1586, 1625, 2500, 3050, 3172, 3250, 3965, 6100, 6500, 7625, 7930, 8125, 15250, 15860, 16250, 19825, 30500, 32500, 38125, 39650, 76250, 79300, 99125, 152500, 198250, 396500, 495625, 991250, 1982500]

約数ペア:

[(1, 1982500), (2, 991250), (4, 495625), (5, 396500), (10, 198250), (13, 152500), (20, 99125), (25, 79300), (26, 76250), (50, 39650), (52, 38125), (61, 32500), (65, 30500), (100, 19825), (122, 16250), (125, 15860), (130, 15250), (244, 8125), (250, 7930), (260, 7625), (305, 6500), (325, 6100), (500, 3965), (610, 3250), (625, 3172), (650, 3050), (793, 2500), (1220, 1625), (1250, 1586), (1300, 1525)]