20442480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4483}}^1$

素因数の和:4518

約数の個数: 80

約数和(自身を含む): 66721920

約数和(自身を除く): 46279440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4483, 4560, 8966, 13449, 17932, 22415, 26898, 35864, 44830, 53796, 67245, 71728, 85177, 89660, 107592, 134490, 170354, 179320, 215184, 255531, 268980, 340708, 358640, 425885, 511062, 537960, 681416, 851770, 1022124, 1075920, 1277655, 1362832, 1703540, 2044248, 2555310, 3407080, 4088496, 5110620, 6814160, 10221240, 20442480]

約数ペア:

[(1, 20442480), (2, 10221240), (3, 6814160), (4, 5110620), (5, 4088496), (6, 3407080), (8, 2555310), (10, 2044248), (12, 1703540), (15, 1362832), (16, 1277655), (19, 1075920), (20, 1022124), (24, 851770), (30, 681416), (38, 537960), (40, 511062), (48, 425885), (57, 358640), (60, 340708), (76, 268980), (80, 255531), (95, 215184), (114, 179320), (120, 170354), (152, 134490), (190, 107592), (228, 89660), (240, 85177), (285, 71728), (304, 67245), (380, 53796), (456, 44830), (570, 35864), (760, 26898), (912, 22415), (1140, 17932), (1520, 13449), (2280, 8966), (4483, 4560)]