248968020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4457}}^1$

素因数の和:4502

約数の個数: 144

約数和(自身を含む): 853796160

約数和(自身を除く): 604828140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2940, 3724, 3990, 4457, 4655, 5586, 7980, 8914, 9310, 11172, 13371, 13965, 17828, 18620, 22285, 26742, 27930, 31199, 44570, 53484, 55860, 62398, 66855, 84683, 89140, 93597, 124796, 133710, 155995, 169366, 187194, 218393, 254049, 267420, 311990, 338732, 374388, 423415, 436786, 467985, 508098, 592781, 623980, 655179, 846830, 873572, 935970, 1016196, 1091965, 1185562, 1270245, 1310358, 1693660, 1778343, 1871940, 2183930, 2371124, 2540490, 2620716, 2963905, 3275895, 3556686, 4149467, 4367860, 5080980, 5927810, 6551790, 7113372, 8298934, 8891715, 11855620, 12448401, 13103580, 16597868, 17783430, 20747335, 24896802, 35566860, 41494670, 49793604, 62242005, 82989340, 124484010, 248968020]

約数ペア:

[(1, 248968020), (2, 124484010), (3, 82989340), (4, 62242005), (5, 49793604), (6, 41494670), (7, 35566860), (10, 24896802), (12, 20747335), (14, 17783430), (15, 16597868), (19, 13103580), (20, 12448401), (21, 11855620), (28, 8891715), (30, 8298934), (35, 7113372), (38, 6551790), (42, 5927810), (49, 5080980), (57, 4367860), (60, 4149467), (70, 3556686), (76, 3275895), (84, 2963905), (95, 2620716), (98, 2540490), (105, 2371124), (114, 2183930), (133, 1871940), (140, 1778343), (147, 1693660), (190, 1310358), (196, 1270245), (210, 1185562), (228, 1091965), (245, 1016196), (266, 935970), (285, 873572), (294, 846830), (380, 655179), (399, 623980), (420, 592781), (490, 508098), (532, 467985), (570, 436786), (588, 423415), (665, 374388), (735, 338732), (798, 311990), (931, 267420), (980, 254049), (1140, 218393), (1330, 187194), (1470, 169366), (1596, 155995), (1862, 133710), (1995, 124796), (2660, 93597), (2793, 89140), (2940, 84683), (3724, 66855), (3990, 62398), (4457, 55860), (4655, 53484), (5586, 44570), (7980, 31199), (8914, 27930), (9310, 26742), (11172, 22285), (13371, 18620), (13965, 17828)]