80178800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:955

約数の個数: 120

約数和(自身を含む): 219892176

約数和(自身を除く): 139713376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 130, 136, 170, 200, 208, 221, 260, 272, 325, 340, 400, 425, 442, 520, 650, 680, 850, 884, 907, 1040, 1105, 1300, 1360, 1700, 1768, 1814, 2210, 2600, 3400, 3536, 3628, 4420, 4535, 5200, 5525, 6800, 7256, 8840, 9070, 11050, 11791, 14512, 15419, 17680, 18140, 22100, 22675, 23582, 30838, 36280, 44200, 45350, 47164, 58955, 61676, 72560, 77095, 88400, 90700, 94328, 117910, 123352, 154190, 181400, 188656, 200447, 235820, 246704, 294775, 308380, 362800, 385475, 400894, 471640, 589550, 616760, 770950, 801788, 943280, 1002235, 1179100, 1233520, 1541900, 1603576, 2004470, 2358200, 3083800, 3207152, 4008940, 4716400, 5011175, 6167600, 8017880, 10022350, 16035760, 20044700, 40089400, 80178800]

約数ペア:

[(1, 80178800), (2, 40089400), (4, 20044700), (5, 16035760), (8, 10022350), (10, 8017880), (13, 6167600), (16, 5011175), (17, 4716400), (20, 4008940), (25, 3207152), (26, 3083800), (34, 2358200), (40, 2004470), (50, 1603576), (52, 1541900), (65, 1233520), (68, 1179100), (80, 1002235), (85, 943280), (100, 801788), (104, 770950), (130, 616760), (136, 589550), (170, 471640), (200, 400894), (208, 385475), (221, 362800), (260, 308380), (272, 294775), (325, 246704), (340, 235820), (400, 200447), (425, 188656), (442, 181400), (520, 154190), (650, 123352), (680, 117910), (850, 94328), (884, 90700), (907, 88400), (1040, 77095), (1105, 72560), (1300, 61676), (1360, 58955), (1700, 47164), (1768, 45350), (1814, 44200), (2210, 36280), (2600, 30838), (3400, 23582), (3536, 22675), (3628, 22100), (4420, 18140), (4535, 17680), (5200, 15419), (5525, 14512), (6800, 11791), (7256, 11050), (8840, 9070)]