28521410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 55702080

約数和(自身を除く): 27180670

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 139, 142, 170, 278, 289, 355, 578, 695, 710, 1207, 1390, 1445, 2363, 2414, 2890, 4726, 6035, 9869, 11815, 12070, 19738, 20519, 23630, 40171, 41038, 49345, 80342, 98690, 102595, 167773, 200855, 205190, 335546, 401710, 838865, 1677730, 2852141, 5704282, 14260705, 28521410]

約数ペア:

[(1, 28521410), (2, 14260705), (5, 5704282), (10, 2852141), (17, 1677730), (34, 838865), (71, 401710), (85, 335546), (139, 205190), (142, 200855), (170, 167773), (278, 102595), (289, 98690), (355, 80342), (578, 49345), (695, 41038), (710, 40171), (1207, 23630), (1390, 20519), (1445, 19738), (2363, 12070), (2414, 11815), (2890, 9869), (4726, 6035)]