80555220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1439}}^1$

素因数の和:1765

約数の個数: 72

約数和(自身を含む): 245306880

約数和(自身を除く): 164751660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1439, 1555, 1866, 2799, 2878, 3110, 3732, 4317, 4665, 5598, 5756, 6220, 7195, 8634, 9330, 11196, 12951, 13995, 14390, 17268, 18660, 21585, 25902, 27990, 28780, 43170, 51804, 55980, 64755, 86340, 129510, 259020, 447529, 895058, 1342587, 1790116, 2237645, 2685174, 4027761, 4475290, 5370348, 6712935, 8055522, 8950580, 13425870, 16111044, 20138805, 26851740, 40277610, 80555220]

約数ペア:

[(1, 80555220), (2, 40277610), (3, 26851740), (4, 20138805), (5, 16111044), (6, 13425870), (9, 8950580), (10, 8055522), (12, 6712935), (15, 5370348), (18, 4475290), (20, 4027761), (30, 2685174), (36, 2237645), (45, 1790116), (60, 1342587), (90, 895058), (180, 447529), (311, 259020), (622, 129510), (933, 86340), (1244, 64755), (1439, 55980), (1555, 51804), (1866, 43170), (2799, 28780), (2878, 27990), (3110, 25902), (3732, 21585), (4317, 18660), (4665, 17268), (5598, 14390), (5756, 13995), (6220, 12951), (7195, 11196), (8634, 9330)]