28311140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:573

約数の個数: 96

約数和(自身を含む): 73664640

約数和(自身を除く): 45353500

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 247, 260, 286, 380, 418, 494, 521, 572, 715, 836, 988, 1042, 1045, 1235, 1430, 2084, 2090, 2470, 2605, 2717, 2860, 4180, 4940, 5210, 5434, 5731, 6773, 9899, 10420, 10868, 11462, 13546, 13585, 19798, 22924, 27092, 27170, 28655, 33865, 39596, 49495, 54340, 57310, 67730, 74503, 98990, 108889, 114620, 128687, 135460, 149006, 197980, 217778, 257374, 298012, 372515, 435556, 514748, 544445, 643435, 745030, 1088890, 1286870, 1415557, 1490060, 2177780, 2573740, 2831114, 5662228, 7077785, 14155570, 28311140]

約数ペア:

[(1, 28311140), (2, 14155570), (4, 7077785), (5, 5662228), (10, 2831114), (11, 2573740), (13, 2177780), (19, 1490060), (20, 1415557), (22, 1286870), (26, 1088890), (38, 745030), (44, 643435), (52, 544445), (55, 514748), (65, 435556), (76, 372515), (95, 298012), (110, 257374), (130, 217778), (143, 197980), (190, 149006), (209, 135460), (220, 128687), (247, 114620), (260, 108889), (286, 98990), (380, 74503), (418, 67730), (494, 57310), (521, 54340), (572, 49495), (715, 39596), (836, 33865), (988, 28655), (1042, 27170), (1045, 27092), (1235, 22924), (1430, 19798), (2084, 13585), (2090, 13546), (2470, 11462), (2605, 10868), (2717, 10420), (2860, 9899), (4180, 6773), (4940, 5731), (5210, 5434)]