778924900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 1924876800

約数和(自身を除く): 1145951900

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 109, 115, 130, 218, 230, 239, 260, 299, 325, 436, 460, 478, 545, 575, 598, 650, 956, 1090, 1150, 1195, 1196, 1300, 1417, 1495, 2180, 2300, 2390, 2507, 2725, 2834, 2990, 3107, 4780, 5014, 5450, 5497, 5668, 5975, 5980, 6214, 7085, 7475, 10028, 10900, 10994, 11950, 12428, 12535, 14170, 14950, 15535, 21988, 23900, 25070, 26051, 27485, 28340, 29900, 31070, 32591, 35425, 50140, 52102, 54970, 62140, 62675, 65182, 70850, 71461, 77675, 104204, 109940, 125350, 130255, 130364, 137425, 141700, 142922, 155350, 162955, 250700, 260510, 274850, 285844, 310700, 325910, 338663, 357305, 521020, 549700, 599173, 651275, 651820, 677326, 714610, 814775, 1198346, 1302550, 1354652, 1429220, 1629550, 1693315, 1786525, 2396692, 2605100, 2995865, 3259100, 3386630, 3573050, 5991730, 6773260, 7146100, 7789249, 8466575, 11983460, 14979325, 15578498, 16933150, 29958650, 31156996, 33866300, 38946245, 59917300, 77892490, 155784980, 194731225, 389462450, 778924900]

約数ペア:

[(1, 778924900), (2, 389462450), (4, 194731225), (5, 155784980), (10, 77892490), (13, 59917300), (20, 38946245), (23, 33866300), (25, 31156996), (26, 29958650), (46, 16933150), (50, 15578498), (52, 14979325), (65, 11983460), (92, 8466575), (100, 7789249), (109, 7146100), (115, 6773260), (130, 5991730), (218, 3573050), (230, 3386630), (239, 3259100), (260, 2995865), (299, 2605100), (325, 2396692), (436, 1786525), (460, 1693315), (478, 1629550), (545, 1429220), (575, 1354652), (598, 1302550), (650, 1198346), (956, 814775), (1090, 714610), (1150, 677326), (1195, 651820), (1196, 651275), (1300, 599173), (1417, 549700), (1495, 521020), (2180, 357305), (2300, 338663), (2390, 325910), (2507, 310700), (2725, 285844), (2834, 274850), (2990, 260510), (3107, 250700), (4780, 162955), (5014, 155350), (5450, 142922), (5497, 141700), (5668, 137425), (5975, 130364), (5980, 130255), (6214, 125350), (7085, 109940), (7475, 104204), (10028, 77675), (10900, 71461), (10994, 70850), (11950, 65182), (12428, 62675), (12535, 62140), (14170, 54970), (14950, 52102), (15535, 50140), (21988, 35425), (23900, 32591), (25070, 31070), (26051, 29900), (27485, 28340)]