19659960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 64668240

約数和(自身を除く): 45008280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 563, 582, 776, 873, 970, 1126, 1164, 1455, 1689, 1746, 1940, 2252, 2328, 2815, 2910, 3378, 3492, 3880, 4365, 4504, 5067, 5630, 5820, 6756, 6984, 8445, 8730, 10134, 11260, 11640, 13512, 16890, 17460, 20268, 22520, 25335, 33780, 34920, 40536, 50670, 54611, 67560, 101340, 109222, 163833, 202680, 218444, 273055, 327666, 436888, 491499, 546110, 655332, 819165, 982998, 1092220, 1310664, 1638330, 1965996, 2184440, 2457495, 3276660, 3931992, 4914990, 6553320, 9829980, 19659960]

約数ペア:

[(1, 19659960), (2, 9829980), (3, 6553320), (4, 4914990), (5, 3931992), (6, 3276660), (8, 2457495), (9, 2184440), (10, 1965996), (12, 1638330), (15, 1310664), (18, 1092220), (20, 982998), (24, 819165), (30, 655332), (36, 546110), (40, 491499), (45, 436888), (60, 327666), (72, 273055), (90, 218444), (97, 202680), (120, 163833), (180, 109222), (194, 101340), (291, 67560), (360, 54611), (388, 50670), (485, 40536), (563, 34920), (582, 33780), (776, 25335), (873, 22520), (970, 20268), (1126, 17460), (1164, 16890), (1455, 13512), (1689, 11640), (1746, 11260), (1940, 10134), (2252, 8730), (2328, 8445), (2815, 6984), (2910, 6756), (3378, 5820), (3492, 5630), (3880, 5067), (4365, 4504)]