19887780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30133}}^1$

素因数の和:30156

約数の個数: 48

約数和(自身を含む): 60750144

約数和(自身を除く): 40862364

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 30133, 60266, 90399, 120532, 150665, 180798, 301330, 331463, 361596, 451995, 602660, 662926, 903990, 994389, 1325852, 1657315, 1807980, 1988778, 3314630, 3977556, 4971945, 6629260, 9943890, 19887780]

約数ペア:

[(1, 19887780), (2, 9943890), (3, 6629260), (4, 4971945), (5, 3977556), (6, 3314630), (10, 1988778), (11, 1807980), (12, 1657315), (15, 1325852), (20, 994389), (22, 903990), (30, 662926), (33, 602660), (44, 451995), (55, 361596), (60, 331463), (66, 301330), (110, 180798), (132, 150665), (165, 120532), (220, 90399), (330, 60266), (660, 30133)]