100640720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1012

約数の個数: 80

約数和(自身を含む): 249954240

約数和(自身を除く): 149313520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 190, 292, 304, 365, 380, 584, 730, 760, 907, 1168, 1387, 1460, 1520, 1814, 2774, 2920, 3628, 4535, 5548, 5840, 6935, 7256, 9070, 11096, 13870, 14512, 17233, 18140, 22192, 27740, 34466, 36280, 55480, 66211, 68932, 72560, 86165, 110960, 132422, 137864, 172330, 264844, 275728, 331055, 344660, 529688, 662110, 689320, 1059376, 1258009, 1324220, 1378640, 2516018, 2648440, 5032036, 5296880, 6290045, 10064072, 12580090, 20128144, 25160180, 50320360, 100640720]

約数ペア:

[(1, 100640720), (2, 50320360), (4, 25160180), (5, 20128144), (8, 12580090), (10, 10064072), (16, 6290045), (19, 5296880), (20, 5032036), (38, 2648440), (40, 2516018), (73, 1378640), (76, 1324220), (80, 1258009), (95, 1059376), (146, 689320), (152, 662110), (190, 529688), (292, 344660), (304, 331055), (365, 275728), (380, 264844), (584, 172330), (730, 137864), (760, 132422), (907, 110960), (1168, 86165), (1387, 72560), (1460, 68932), (1520, 66211), (1814, 55480), (2774, 36280), (2920, 34466), (3628, 27740), (4535, 22192), (5548, 18140), (5840, 17233), (6935, 14512), (7256, 13870), (9070, 11096)]