781616280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:745

約数の個数: 128

約数和(自身を含む): 2395008000

約数和(自身を除く): 1613391720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 199, 213, 284, 355, 398, 426, 461, 568, 597, 710, 796, 852, 922, 995, 1065, 1194, 1383, 1420, 1592, 1704, 1844, 1990, 2130, 2305, 2388, 2766, 2840, 2985, 3688, 3980, 4260, 4610, 4776, 5532, 5970, 6915, 7960, 8520, 9220, 11064, 11940, 13830, 14129, 18440, 23880, 27660, 28258, 32731, 42387, 55320, 56516, 65462, 70645, 84774, 91739, 98193, 113032, 130924, 141290, 163655, 169548, 183478, 196386, 211935, 261848, 275217, 282580, 327310, 339096, 366956, 392772, 423870, 458695, 490965, 550434, 565160, 654620, 733912, 785544, 847740, 917390, 981930, 1100868, 1309240, 1376085, 1695480, 1834780, 1963860, 2201736, 2752170, 3669560, 3927720, 5504340, 6513469, 11008680, 13026938, 19540407, 26053876, 32567345, 39080814, 52107752, 65134690, 78161628, 97702035, 130269380, 156323256, 195404070, 260538760, 390808140, 781616280]

約数ペア:

[(1, 781616280), (2, 390808140), (3, 260538760), (4, 195404070), (5, 156323256), (6, 130269380), (8, 97702035), (10, 78161628), (12, 65134690), (15, 52107752), (20, 39080814), (24, 32567345), (30, 26053876), (40, 19540407), (60, 13026938), (71, 11008680), (120, 6513469), (142, 5504340), (199, 3927720), (213, 3669560), (284, 2752170), (355, 2201736), (398, 1963860), (426, 1834780), (461, 1695480), (568, 1376085), (597, 1309240), (710, 1100868), (796, 981930), (852, 917390), (922, 847740), (995, 785544), (1065, 733912), (1194, 654620), (1383, 565160), (1420, 550434), (1592, 490965), (1704, 458695), (1844, 423870), (1990, 392772), (2130, 366956), (2305, 339096), (2388, 327310), (2766, 282580), (2840, 275217), (2985, 261848), (3688, 211935), (3980, 196386), (4260, 183478), (4610, 169548), (4776, 163655), (5532, 141290), (5970, 130924), (6915, 113032), (7960, 98193), (8520, 91739), (9220, 84774), (11064, 70645), (11940, 65462), (13830, 56516), (14129, 55320), (18440, 42387), (23880, 32731), (27660, 28258)]