21587760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29983}}^1$

素因数の和:30002

約数の個数: 60

約数和(自身を含む): 72501312

約数和(自身を除く): 50913552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29983, 59966, 89949, 119932, 149915, 179898, 239864, 269847, 299830, 359796, 449745, 479728, 539694, 599660, 719592, 899490, 1079388, 1199320, 1349235, 1439184, 1798980, 2158776, 2398640, 2698470, 3597960, 4317552, 5396940, 7195920, 10793880, 21587760]

約数ペア:

[(1, 21587760), (2, 10793880), (3, 7195920), (4, 5396940), (5, 4317552), (6, 3597960), (8, 2698470), (9, 2398640), (10, 2158776), (12, 1798980), (15, 1439184), (16, 1349235), (18, 1199320), (20, 1079388), (24, 899490), (30, 719592), (36, 599660), (40, 539694), (45, 479728), (48, 449745), (60, 359796), (72, 299830), (80, 269847), (90, 239864), (120, 179898), (144, 149915), (180, 119932), (240, 89949), (360, 59966), (720, 29983)]