90809540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 198374400

約数和(自身を除く): 107564860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 983, 1490, 1966, 2980, 3932, 4619, 4915, 9238, 9830, 18476, 19660, 23095, 30473, 46190, 60946, 92380, 121892, 146467, 152365, 292934, 304730, 585868, 609460, 732335, 1464670, 2929340, 4540477, 9080954, 18161908, 22702385, 45404770, 90809540]

約数ペア:

[(1, 90809540), (2, 45404770), (4, 22702385), (5, 18161908), (10, 9080954), (20, 4540477), (31, 2929340), (62, 1464670), (124, 732335), (149, 609460), (155, 585868), (298, 304730), (310, 292934), (596, 152365), (620, 146467), (745, 121892), (983, 92380), (1490, 60946), (1966, 46190), (2980, 30473), (3932, 23095), (4619, 19660), (4915, 18476), (9238, 9830)]