39720420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1645

約数の個数: 72

約数和(自身を含む): 121375800

約数和(自身を除く): 81655380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1481, 1490, 1788, 2235, 2682, 2962, 2980, 4443, 4470, 5364, 5924, 6705, 7405, 8886, 8940, 13329, 13410, 14810, 17772, 22215, 26658, 26820, 29620, 44430, 53316, 66645, 88860, 133290, 220669, 266580, 441338, 662007, 882676, 1103345, 1324014, 1986021, 2206690, 2648028, 3310035, 3972042, 4413380, 6620070, 7944084, 9930105, 13240140, 19860210, 39720420]

約数ペア:

[(1, 39720420), (2, 19860210), (3, 13240140), (4, 9930105), (5, 7944084), (6, 6620070), (9, 4413380), (10, 3972042), (12, 3310035), (15, 2648028), (18, 2206690), (20, 1986021), (30, 1324014), (36, 1103345), (45, 882676), (60, 662007), (90, 441338), (149, 266580), (180, 220669), (298, 133290), (447, 88860), (596, 66645), (745, 53316), (894, 44430), (1341, 29620), (1481, 26820), (1490, 26658), (1788, 22215), (2235, 17772), (2682, 14810), (2962, 13410), (2980, 13329), (4443, 8940), (4470, 8886), (5364, 7405), (5924, 6705)]