89288420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20201}}^1$

素因数の和:20240

約数の個数: 48

約数和(自身を含む): 213817968

約数和(自身を除く): 124529548

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 20201, 40402, 80804, 101005, 202010, 262613, 343417, 404020, 525226, 686834, 1050452, 1313065, 1373668, 1717085, 2626130, 3434170, 4464421, 5252260, 6868340, 8928842, 17857684, 22322105, 44644210, 89288420]

約数ペア:

[(1, 89288420), (2, 44644210), (4, 22322105), (5, 17857684), (10, 8928842), (13, 6868340), (17, 5252260), (20, 4464421), (26, 3434170), (34, 2626130), (52, 1717085), (65, 1373668), (68, 1313065), (85, 1050452), (130, 686834), (170, 525226), (221, 404020), (260, 343417), (340, 262613), (442, 202010), (884, 101005), (1105, 80804), (2210, 40402), (4420, 20201)]