20447053600

素因数分解:

$2^5\times 5^2\times {\mathrm{61}}^1\times {\mathrm{418997}}^1$

素因数の和:419078

約数の個数: 72

約数和(自身を含む): 50734791828

約数和(自身を除く): 30287738228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 80, 100, 122, 160, 200, 244, 305, 400, 488, 610, 800, 976, 1220, 1525, 1952, 2440, 3050, 4880, 6100, 9760, 12200, 24400, 48800, 418997, 837994, 1675988, 2094985, 3351976, 4189970, 6703952, 8379940, 10474925, 13407904, 16759880, 20949850, 25558817, 33519760, 41899700, 51117634, 67039520, 83799400, 102235268, 127794085, 167598800, 204470536, 255588170, 335197600, 408941072, 511176340, 638970425, 817882144, 1022352680, 1277940850, 2044705360, 2555881700, 4089410720, 5111763400, 10223526800, 20447053600]

約数ペア:

[(1, 20447053600), (2, 10223526800), (4, 5111763400), (5, 4089410720), (8, 2555881700), (10, 2044705360), (16, 1277940850), (20, 1022352680), (25, 817882144), (32, 638970425), (40, 511176340), (50, 408941072), (61, 335197600), (80, 255588170), (100, 204470536), (122, 167598800), (160, 127794085), (200, 102235268), (244, 83799400), (305, 67039520), (400, 51117634), (488, 41899700), (610, 33519760), (800, 25558817), (976, 20949850), (1220, 16759880), (1525, 13407904), (1952, 10474925), (2440, 8379940), (3050, 6703952), (4880, 4189970), (6100, 3351976), (9760, 2094985), (12200, 1675988), (24400, 837994), (48800, 418997)]