664020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 2515968

約数和(自身を除く): 1851948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 31, 34, 35, 36, 42, 45, 51, 60, 62, 63, 68, 70, 84, 85, 90, 93, 102, 105, 119, 124, 126, 140, 153, 155, 170, 180, 186, 204, 210, 217, 238, 252, 255, 279, 306, 310, 315, 340, 357, 372, 420, 434, 465, 476, 510, 527, 558, 595, 612, 620, 630, 651, 714, 765, 868, 930, 1020, 1054, 1071, 1085, 1116, 1190, 1260, 1302, 1395, 1428, 1530, 1581, 1785, 1860, 1953, 2108, 2142, 2170, 2380, 2604, 2635, 2790, 3060, 3162, 3255, 3570, 3689, 3906, 4284, 4340, 4743, 5270, 5355, 5580, 6324, 6510, 7140, 7378, 7812, 7905, 9486, 9765, 10540, 10710, 11067, 13020, 14756, 15810, 18445, 18972, 19530, 21420, 22134, 23715, 31620, 33201, 36890, 39060, 44268, 47430, 55335, 66402, 73780, 94860, 110670, 132804, 166005, 221340, 332010, 664020]

約数ペア:

[(1, 664020), (2, 332010), (3, 221340), (4, 166005), (5, 132804), (6, 110670), (7, 94860), (9, 73780), (10, 66402), (12, 55335), (14, 47430), (15, 44268), (17, 39060), (18, 36890), (20, 33201), (21, 31620), (28, 23715), (30, 22134), (31, 21420), (34, 19530), (35, 18972), (36, 18445), (42, 15810), (45, 14756), (51, 13020), (60, 11067), (62, 10710), (63, 10540), (68, 9765), (70, 9486), (84, 7905), (85, 7812), (90, 7378), (93, 7140), (102, 6510), (105, 6324), (119, 5580), (124, 5355), (126, 5270), (140, 4743), (153, 4340), (155, 4284), (170, 3906), (180, 3689), (186, 3570), (204, 3255), (210, 3162), (217, 3060), (238, 2790), (252, 2635), (255, 2604), (279, 2380), (306, 2170), (310, 2142), (315, 2108), (340, 1953), (357, 1860), (372, 1785), (420, 1581), (434, 1530), (465, 1428), (476, 1395), (510, 1302), (527, 1260), (558, 1190), (595, 1116), (612, 1085), (620, 1071), (630, 1054), (651, 1020), (714, 930), (765, 868)]