40195990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 80559360

約数和(自身を除く): 40363370

約数列:

[1, 2, 5, 10, 17, 34, 41, 73, 79, 82, 85, 146, 158, 170, 205, 365, 395, 410, 697, 730, 790, 1241, 1343, 1394, 2482, 2686, 2993, 3239, 3485, 5767, 5986, 6205, 6478, 6715, 6970, 11534, 12410, 13430, 14965, 16195, 28835, 29930, 32390, 50881, 55063, 57670, 98039, 101762, 110126, 196078, 236447, 254405, 275315, 472894, 490195, 508810, 550630, 980390, 1182235, 2364470, 4019599, 8039198, 20097995, 40195990]

約数ペア:

[(1, 40195990), (2, 20097995), (5, 8039198), (10, 4019599), (17, 2364470), (34, 1182235), (41, 980390), (73, 550630), (79, 508810), (82, 490195), (85, 472894), (146, 275315), (158, 254405), (170, 236447), (205, 196078), (365, 110126), (395, 101762), (410, 98039), (697, 57670), (730, 55063), (790, 50881), (1241, 32390), (1343, 29930), (1394, 28835), (2482, 16195), (2686, 14965), (2993, 13430), (3239, 12410), (3485, 11534), (5767, 6970), (5986, 6715), (6205, 6478)]