28253295

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 56347200

約数和(自身を除く): 28093905

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 257, 315, 349, 771, 1047, 1285, 1745, 1799, 2313, 2443, 3141, 3855, 5235, 5397, 7329, 8995, 11565, 12215, 15705, 16191, 21987, 26985, 36645, 80955, 89693, 109935, 269079, 448465, 627851, 807237, 1345395, 1883553, 3139255, 4036185, 5650659, 9417765, 28253295]

約数ペア:

[(1, 28253295), (3, 9417765), (5, 5650659), (7, 4036185), (9, 3139255), (15, 1883553), (21, 1345395), (35, 807237), (45, 627851), (63, 448465), (105, 269079), (257, 109935), (315, 89693), (349, 80955), (771, 36645), (1047, 26985), (1285, 21987), (1745, 16191), (1799, 15705), (2313, 12215), (2443, 11565), (3141, 8995), (3855, 7329), (5235, 5397)]