64007920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 154275840

約数和(自身を除く): 90267920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 71, 80, 118, 142, 191, 236, 284, 295, 355, 382, 472, 568, 590, 710, 764, 944, 955, 1136, 1180, 1420, 1528, 1910, 2360, 2840, 3056, 3820, 4189, 4720, 5680, 7640, 8378, 11269, 13561, 15280, 16756, 20945, 22538, 27122, 33512, 41890, 45076, 54244, 56345, 67024, 67805, 83780, 90152, 108488, 112690, 135610, 167560, 180304, 216976, 225380, 271220, 335120, 450760, 542440, 800099, 901520, 1084880, 1600198, 3200396, 4000495, 6400792, 8000990, 12801584, 16001980, 32003960, 64007920]

約数ペア:

[(1, 64007920), (2, 32003960), (4, 16001980), (5, 12801584), (8, 8000990), (10, 6400792), (16, 4000495), (20, 3200396), (40, 1600198), (59, 1084880), (71, 901520), (80, 800099), (118, 542440), (142, 450760), (191, 335120), (236, 271220), (284, 225380), (295, 216976), (355, 180304), (382, 167560), (472, 135610), (568, 112690), (590, 108488), (710, 90152), (764, 83780), (944, 67805), (955, 67024), (1136, 56345), (1180, 54244), (1420, 45076), (1528, 41890), (1910, 33512), (2360, 27122), (2840, 22538), (3056, 20945), (3820, 16756), (4189, 15280), (4720, 13561), (5680, 11269), (7640, 8378)]