865640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:114

約数の個数: 64

約数和(自身を含む): 2203200

約数和(自身を除く): 1337560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 67, 68, 76, 85, 95, 134, 136, 152, 170, 190, 268, 323, 335, 340, 380, 536, 646, 670, 680, 760, 1139, 1273, 1292, 1340, 1615, 2278, 2546, 2584, 2680, 3230, 4556, 5092, 5695, 6365, 6460, 9112, 10184, 11390, 12730, 12920, 21641, 22780, 25460, 43282, 45560, 50920, 86564, 108205, 173128, 216410, 432820, 865640]

約数ペア:

[(1, 865640), (2, 432820), (4, 216410), (5, 173128), (8, 108205), (10, 86564), (17, 50920), (19, 45560), (20, 43282), (34, 25460), (38, 22780), (40, 21641), (67, 12920), (68, 12730), (76, 11390), (85, 10184), (95, 9112), (134, 6460), (136, 6365), (152, 5695), (170, 5092), (190, 4556), (268, 3230), (323, 2680), (335, 2584), (340, 2546), (380, 2278), (536, 1615), (646, 1340), (670, 1292), (680, 1273), (760, 1139)]