20186407880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1\times {\mathrm{953}}^1$

素因数の和:1623

約数の個数: 128

約数和(自身を含む): 48960806400

約数和(自身を除く): 28774398520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 593, 760, 893, 940, 953, 1186, 1786, 1880, 1906, 2372, 2965, 3572, 3812, 4465, 4744, 4765, 5930, 7144, 7624, 8930, 9530, 11267, 11860, 17860, 18107, 19060, 22534, 23720, 27871, 35720, 36214, 38120, 44791, 45068, 55742, 56335, 72428, 89582, 90136, 90535, 111484, 112670, 139355, 144856, 179164, 181070, 222968, 223955, 225340, 278710, 358328, 362140, 447910, 450680, 529549, 557420, 565129, 724280, 851029, 895820, 1059098, 1114840, 1130258, 1702058, 1791640, 2118196, 2260516, 2647745, 2825645, 3404116, 4236392, 4255145, 4521032, 5295490, 5651290, 6808232, 8510290, 10590980, 10737451, 11302580, 17020580, 21181960, 21474902, 22605160, 26561063, 34041160, 42949804, 53122126, 53687255, 85899608, 106244252, 107374510, 132805315, 212488504, 214749020, 265610630, 429498040, 504660197, 531221260, 1009320394, 1062442520, 2018640788, 2523300985, 4037281576, 5046601970, 10093203940, 20186407880]

約数ペア:

[(1, 20186407880), (2, 10093203940), (4, 5046601970), (5, 4037281576), (8, 2523300985), (10, 2018640788), (19, 1062442520), (20, 1009320394), (38, 531221260), (40, 504660197), (47, 429498040), (76, 265610630), (94, 214749020), (95, 212488504), (152, 132805315), (188, 107374510), (190, 106244252), (235, 85899608), (376, 53687255), (380, 53122126), (470, 42949804), (593, 34041160), (760, 26561063), (893, 22605160), (940, 21474902), (953, 21181960), (1186, 17020580), (1786, 11302580), (1880, 10737451), (1906, 10590980), (2372, 8510290), (2965, 6808232), (3572, 5651290), (3812, 5295490), (4465, 4521032), (4744, 4255145), (4765, 4236392), (5930, 3404116), (7144, 2825645), (7624, 2647745), (8930, 2260516), (9530, 2118196), (11267, 1791640), (11860, 1702058), (17860, 1130258), (18107, 1114840), (19060, 1059098), (22534, 895820), (23720, 851029), (27871, 724280), (35720, 565129), (36214, 557420), (38120, 529549), (44791, 450680), (45068, 447910), (55742, 362140), (56335, 358328), (72428, 278710), (89582, 225340), (90136, 223955), (90535, 222968), (111484, 181070), (112670, 179164), (139355, 144856)]