90988720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1994

約数の個数: 80

約数和(自身を含む): 229985280

約数和(自身を除く): 138996560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 1931, 2356, 2480, 2945, 3862, 4712, 5890, 7724, 9424, 9655, 11780, 15448, 19310, 23560, 30896, 36689, 38620, 47120, 59861, 73378, 77240, 119722, 146756, 154480, 183445, 239444, 293512, 299305, 366890, 478888, 587024, 598610, 733780, 957776, 1137359, 1197220, 1467560, 2274718, 2394440, 2935120, 4549436, 4788880, 5686795, 9098872, 11373590, 18197744, 22747180, 45494360, 90988720]

約数ペア:

[(1, 90988720), (2, 45494360), (4, 22747180), (5, 18197744), (8, 11373590), (10, 9098872), (16, 5686795), (19, 4788880), (20, 4549436), (31, 2935120), (38, 2394440), (40, 2274718), (62, 1467560), (76, 1197220), (80, 1137359), (95, 957776), (124, 733780), (152, 598610), (155, 587024), (190, 478888), (248, 366890), (304, 299305), (310, 293512), (380, 239444), (496, 183445), (589, 154480), (620, 146756), (760, 119722), (1178, 77240), (1240, 73378), (1520, 59861), (1931, 47120), (2356, 38620), (2480, 36689), (2945, 30896), (3862, 23560), (4712, 19310), (5890, 15448), (7724, 11780), (9424, 9655)]