78261840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1489}}^1$

素因数の和:1581

約数の個数: 120

約数和(自身を含む): 266608680

約数和(自身を除く): 188346840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 360, 365, 438, 584, 657, 720, 730, 876, 1095, 1168, 1314, 1460, 1489, 1752, 2190, 2628, 2920, 2978, 3285, 3504, 4380, 4467, 5256, 5840, 5956, 6570, 7445, 8760, 8934, 10512, 11912, 13140, 13401, 14890, 17520, 17868, 22335, 23824, 26280, 26802, 29780, 35736, 44670, 52560, 53604, 59560, 67005, 71472, 89340, 107208, 108697, 119120, 134010, 178680, 214416, 217394, 268020, 326091, 357360, 434788, 536040, 543485, 652182, 869576, 978273, 1072080, 1086970, 1304364, 1630455, 1739152, 1956546, 2173940, 2608728, 3260910, 3913092, 4347880, 4891365, 5217456, 6521820, 7826184, 8695760, 9782730, 13043640, 15652368, 19565460, 26087280, 39130920, 78261840]

約数ペア:

[(1, 78261840), (2, 39130920), (3, 26087280), (4, 19565460), (5, 15652368), (6, 13043640), (8, 9782730), (9, 8695760), (10, 7826184), (12, 6521820), (15, 5217456), (16, 4891365), (18, 4347880), (20, 3913092), (24, 3260910), (30, 2608728), (36, 2173940), (40, 1956546), (45, 1739152), (48, 1630455), (60, 1304364), (72, 1086970), (73, 1072080), (80, 978273), (90, 869576), (120, 652182), (144, 543485), (146, 536040), (180, 434788), (219, 357360), (240, 326091), (292, 268020), (360, 217394), (365, 214416), (438, 178680), (584, 134010), (657, 119120), (720, 108697), (730, 107208), (876, 89340), (1095, 71472), (1168, 67005), (1314, 59560), (1460, 53604), (1489, 52560), (1752, 44670), (2190, 35736), (2628, 29780), (2920, 26802), (2978, 26280), (3285, 23824), (3504, 22335), (4380, 17868), (4467, 17520), (5256, 14890), (5840, 13401), (5956, 13140), (6570, 11912), (7445, 10512), (8760, 8934)]