16521700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 39372480

約数和(自身を除く): 22850780

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 179, 260, 284, 325, 355, 358, 650, 710, 716, 895, 923, 1300, 1420, 1775, 1790, 1846, 2327, 3550, 3580, 3692, 4475, 4615, 4654, 7100, 8950, 9230, 9308, 11635, 12709, 17900, 18460, 23075, 23270, 25418, 46150, 46540, 50836, 58175, 63545, 92300, 116350, 127090, 165217, 232700, 254180, 317725, 330434, 635450, 660868, 826085, 1270900, 1652170, 3304340, 4130425, 8260850, 16521700]

約数ペア:

[(1, 16521700), (2, 8260850), (4, 4130425), (5, 3304340), (10, 1652170), (13, 1270900), (20, 826085), (25, 660868), (26, 635450), (50, 330434), (52, 317725), (65, 254180), (71, 232700), (100, 165217), (130, 127090), (142, 116350), (179, 92300), (260, 63545), (284, 58175), (325, 50836), (355, 46540), (358, 46150), (650, 25418), (710, 23270), (716, 23075), (895, 18460), (923, 17900), (1300, 12709), (1420, 11635), (1775, 9308), (1790, 9230), (1846, 8950), (2327, 7100), (3550, 4654), (3580, 4615), (3692, 4475)]