19976760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:422

約数の個数: 128

約数和(自身を含む): 68040000

約数和(自身を除く): 48063240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 349, 360, 424, 477, 530, 540, 636, 698, 795, 954, 1047, 1060, 1080, 1272, 1396, 1431, 1590, 1745, 1908, 2094, 2120, 2385, 2792, 2862, 3141, 3180, 3490, 3816, 4188, 4770, 5235, 5724, 6282, 6360, 6980, 7155, 8376, 9423, 9540, 10470, 11448, 12564, 13960, 14310, 15705, 18497, 18846, 19080, 20940, 25128, 28620, 31410, 36994, 37692, 41880, 47115, 55491, 57240, 62820, 73988, 75384, 92485, 94230, 110982, 125640, 147976, 166473, 184970, 188460, 221964, 277455, 332946, 369940, 376920, 443928, 499419, 554910, 665892, 739880, 832365, 998838, 1109820, 1331784, 1664730, 1997676, 2219640, 2497095, 3329460, 3995352, 4994190, 6658920, 9988380, 19976760]

約数ペア:

[(1, 19976760), (2, 9988380), (3, 6658920), (4, 4994190), (5, 3995352), (6, 3329460), (8, 2497095), (9, 2219640), (10, 1997676), (12, 1664730), (15, 1331784), (18, 1109820), (20, 998838), (24, 832365), (27, 739880), (30, 665892), (36, 554910), (40, 499419), (45, 443928), (53, 376920), (54, 369940), (60, 332946), (72, 277455), (90, 221964), (106, 188460), (108, 184970), (120, 166473), (135, 147976), (159, 125640), (180, 110982), (212, 94230), (216, 92485), (265, 75384), (270, 73988), (318, 62820), (349, 57240), (360, 55491), (424, 47115), (477, 41880), (530, 37692), (540, 36994), (636, 31410), (698, 28620), (795, 25128), (954, 20940), (1047, 19080), (1060, 18846), (1080, 18497), (1272, 15705), (1396, 14310), (1431, 13960), (1590, 12564), (1745, 11448), (1908, 10470), (2094, 9540), (2120, 9423), (2385, 8376), (2792, 7155), (2862, 6980), (3141, 6360), (3180, 6282), (3490, 5724), (3816, 5235), (4188, 4770)]