28103720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1117}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 68824080

約数和(自身を除く): 40720360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 680, 740, 1117, 1258, 1480, 2234, 2516, 3145, 4468, 5032, 5585, 6290, 8936, 11170, 12580, 18989, 22340, 25160, 37978, 41329, 44680, 75956, 82658, 94945, 151912, 165316, 189890, 206645, 330632, 379780, 413290, 702593, 759560, 826580, 1405186, 1653160, 2810372, 3512965, 5620744, 7025930, 14051860, 28103720]

約数ペア:

[(1, 28103720), (2, 14051860), (4, 7025930), (5, 5620744), (8, 3512965), (10, 2810372), (17, 1653160), (20, 1405186), (34, 826580), (37, 759560), (40, 702593), (68, 413290), (74, 379780), (85, 330632), (136, 206645), (148, 189890), (170, 165316), (185, 151912), (296, 94945), (340, 82658), (370, 75956), (629, 44680), (680, 41329), (740, 37978), (1117, 25160), (1258, 22340), (1480, 18989), (2234, 12580), (2516, 11170), (3145, 8936), (4468, 6290), (5032, 5585)]