678653680

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1166

約数の個数: 80

約数和(自身を含む): 1621324800

約数和(自身を除く): 942671120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 199, 235, 376, 398, 470, 752, 796, 907, 940, 995, 1592, 1814, 1880, 1990, 3184, 3628, 3760, 3980, 4535, 7256, 7960, 9070, 9353, 14512, 15920, 18140, 18706, 36280, 37412, 42629, 46765, 72560, 74824, 85258, 93530, 149648, 170516, 180493, 187060, 213145, 341032, 360986, 374120, 426290, 682064, 721972, 748240, 852580, 902465, 1443944, 1705160, 1804930, 2887888, 3410320, 3609860, 7219720, 8483171, 14439440, 16966342, 33932684, 42415855, 67865368, 84831710, 135730736, 169663420, 339326840, 678653680]

約数ペア:

[(1, 678653680), (2, 339326840), (4, 169663420), (5, 135730736), (8, 84831710), (10, 67865368), (16, 42415855), (20, 33932684), (40, 16966342), (47, 14439440), (80, 8483171), (94, 7219720), (188, 3609860), (199, 3410320), (235, 2887888), (376, 1804930), (398, 1705160), (470, 1443944), (752, 902465), (796, 852580), (907, 748240), (940, 721972), (995, 682064), (1592, 426290), (1814, 374120), (1880, 360986), (1990, 341032), (3184, 213145), (3628, 187060), (3760, 180493), (3980, 170516), (4535, 149648), (7256, 93530), (7960, 85258), (9070, 74824), (9353, 72560), (14512, 46765), (15920, 42629), (18140, 37412), (18706, 36280)]