15641020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 35108640

約数和(自身を除く): 19467620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 257, 340, 358, 514, 716, 895, 1028, 1285, 1790, 2570, 3043, 3580, 4369, 5140, 6086, 8738, 12172, 15215, 17476, 21845, 30430, 43690, 46003, 60860, 87380, 92006, 184012, 230015, 460030, 782051, 920060, 1564102, 3128204, 3910255, 7820510, 15641020]

約数ペア:

[(1, 15641020), (2, 7820510), (4, 3910255), (5, 3128204), (10, 1564102), (17, 920060), (20, 782051), (34, 460030), (68, 230015), (85, 184012), (170, 92006), (179, 87380), (257, 60860), (340, 46003), (358, 43690), (514, 30430), (716, 21845), (895, 17476), (1028, 15215), (1285, 12172), (1790, 8738), (2570, 6086), (3043, 5140), (3580, 4369)]