64447240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:647

約数の個数: 128

約数和(自身を含む): 179625600

約数和(自身を除く): 115178360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 88, 95, 104, 110, 130, 143, 152, 190, 209, 220, 247, 260, 286, 380, 418, 440, 494, 520, 572, 593, 715, 760, 836, 988, 1045, 1144, 1186, 1235, 1430, 1672, 1976, 2090, 2372, 2470, 2717, 2860, 2965, 4180, 4744, 4940, 5434, 5720, 5930, 6523, 7709, 8360, 9880, 10868, 11267, 11860, 13046, 13585, 15418, 21736, 22534, 23720, 26092, 27170, 30836, 32615, 38545, 45068, 52184, 54340, 56335, 61672, 65230, 77090, 84799, 90136, 108680, 112670, 123937, 130460, 146471, 154180, 169598, 225340, 247874, 260920, 292942, 308360, 339196, 423995, 450680, 495748, 585884, 619685, 678392, 732355, 847990, 991496, 1171768, 1239370, 1464710, 1611181, 1695980, 2478740, 2929420, 3222362, 3391960, 4957480, 5858840, 6444724, 8055905, 12889448, 16111810, 32223620, 64447240]

約数ペア:

[(1, 64447240), (2, 32223620), (4, 16111810), (5, 12889448), (8, 8055905), (10, 6444724), (11, 5858840), (13, 4957480), (19, 3391960), (20, 3222362), (22, 2929420), (26, 2478740), (38, 1695980), (40, 1611181), (44, 1464710), (52, 1239370), (55, 1171768), (65, 991496), (76, 847990), (88, 732355), (95, 678392), (104, 619685), (110, 585884), (130, 495748), (143, 450680), (152, 423995), (190, 339196), (209, 308360), (220, 292942), (247, 260920), (260, 247874), (286, 225340), (380, 169598), (418, 154180), (440, 146471), (494, 130460), (520, 123937), (572, 112670), (593, 108680), (715, 90136), (760, 84799), (836, 77090), (988, 65230), (1045, 61672), (1144, 56335), (1186, 54340), (1235, 52184), (1430, 45068), (1672, 38545), (1976, 32615), (2090, 30836), (2372, 27170), (2470, 26092), (2717, 23720), (2860, 22534), (2965, 21736), (4180, 15418), (4744, 13585), (4940, 13046), (5434, 11860), (5720, 11267), (5930, 10868), (6523, 9880), (7709, 8360)]