21520920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9439}}^1$

素因数の和:9472

約数の個数: 64

約数和(自身を含む): 67968000

約数和(自身を除く): 46447080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9439, 18878, 28317, 37756, 47195, 56634, 75512, 94390, 113268, 141585, 179341, 188780, 226536, 283170, 358682, 377560, 538023, 566340, 717364, 896705, 1076046, 1132680, 1434728, 1793410, 2152092, 2690115, 3586820, 4304184, 5380230, 7173640, 10760460, 21520920]

約数ペア:

[(1, 21520920), (2, 10760460), (3, 7173640), (4, 5380230), (5, 4304184), (6, 3586820), (8, 2690115), (10, 2152092), (12, 1793410), (15, 1434728), (19, 1132680), (20, 1076046), (24, 896705), (30, 717364), (38, 566340), (40, 538023), (57, 377560), (60, 358682), (76, 283170), (95, 226536), (114, 188780), (120, 179341), (152, 141585), (190, 113268), (228, 94390), (285, 75512), (380, 56634), (456, 47195), (570, 37756), (760, 28317), (1140, 18878), (2280, 9439)]