90945440

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4339}}^1$

素因数の和:4485

約数の個数: 48

約数和(自身を含む): 216548640

約数和(自身を除く): 125603200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2620, 4192, 4339, 5240, 8678, 10480, 17356, 20960, 21695, 34712, 43390, 69424, 86780, 138848, 173560, 347120, 568409, 694240, 1136818, 2273636, 2842045, 4547272, 5684090, 9094544, 11368180, 18189088, 22736360, 45472720, 90945440]

約数ペア:

[(1, 90945440), (2, 45472720), (4, 22736360), (5, 18189088), (8, 11368180), (10, 9094544), (16, 5684090), (20, 4547272), (32, 2842045), (40, 2273636), (80, 1136818), (131, 694240), (160, 568409), (262, 347120), (524, 173560), (655, 138848), (1048, 86780), (1310, 69424), (2096, 43390), (2620, 34712), (4192, 21695), (4339, 20960), (5240, 17356), (8678, 10480)]