19178460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 144

約数和(自身を含む): 68769792

約数和(自身を除く): 49591332

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 491, 558, 620, 630, 651, 868, 930, 982, 1085, 1116, 1260, 1302, 1395, 1473, 1860, 1953, 1964, 2170, 2455, 2604, 2790, 2946, 3255, 3437, 3906, 4340, 4419, 4910, 5580, 5892, 6510, 6874, 7365, 7812, 8838, 9765, 9820, 10311, 13020, 13748, 14730, 15221, 17185, 17676, 19530, 20622, 22095, 29460, 30442, 30933, 34370, 39060, 41244, 44190, 45663, 51555, 60884, 61866, 68740, 76105, 88380, 91326, 103110, 106547, 123732, 136989, 152210, 154665, 182652, 206220, 213094, 228315, 273978, 304420, 309330, 319641, 426188, 456630, 532735, 547956, 618660, 639282, 684945, 913260, 958923, 1065470, 1278564, 1369890, 1598205, 1917846, 2130940, 2739780, 3196410, 3835692, 4794615, 6392820, 9589230, 19178460]

約数ペア:

[(1, 19178460), (2, 9589230), (3, 6392820), (4, 4794615), (5, 3835692), (6, 3196410), (7, 2739780), (9, 2130940), (10, 1917846), (12, 1598205), (14, 1369890), (15, 1278564), (18, 1065470), (20, 958923), (21, 913260), (28, 684945), (30, 639282), (31, 618660), (35, 547956), (36, 532735), (42, 456630), (45, 426188), (60, 319641), (62, 309330), (63, 304420), (70, 273978), (84, 228315), (90, 213094), (93, 206220), (105, 182652), (124, 154665), (126, 152210), (140, 136989), (155, 123732), (180, 106547), (186, 103110), (210, 91326), (217, 88380), (252, 76105), (279, 68740), (310, 61866), (315, 60884), (372, 51555), (420, 45663), (434, 44190), (465, 41244), (491, 39060), (558, 34370), (620, 30933), (630, 30442), (651, 29460), (868, 22095), (930, 20622), (982, 19530), (1085, 17676), (1116, 17185), (1260, 15221), (1302, 14730), (1395, 13748), (1473, 13020), (1860, 10311), (1953, 9820), (1964, 9765), (2170, 8838), (2455, 7812), (2604, 7365), (2790, 6874), (2946, 6510), (3255, 5892), (3437, 5580), (3906, 4910), (4340, 4419)]