787239260

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1\times {\mathrm{1117}}^1$

素因数の和:1526

約数の個数: 48

約数和(自身を含む): 1673511840

約数和(自身を除く): 886272580

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 269, 524, 538, 655, 1076, 1117, 1310, 1345, 2234, 2620, 2690, 4468, 5380, 5585, 11170, 22340, 35239, 70478, 140956, 146327, 176195, 292654, 300473, 352390, 585308, 600946, 704780, 731635, 1201892, 1463270, 1502365, 2926540, 3004730, 6009460, 39361963, 78723926, 157447852, 196809815, 393619630, 787239260]

約数ペア:

[(1, 787239260), (2, 393619630), (4, 196809815), (5, 157447852), (10, 78723926), (20, 39361963), (131, 6009460), (262, 3004730), (269, 2926540), (524, 1502365), (538, 1463270), (655, 1201892), (1076, 731635), (1117, 704780), (1310, 600946), (1345, 585308), (2234, 352390), (2620, 300473), (2690, 292654), (4468, 176195), (5380, 146327), (5585, 140956), (11170, 70478), (22340, 35239)]