20620470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1429}}^1$

素因数の和:1489

約数の個数: 64

約数和(自身を含む): 54774720

約数和(自身を除く): 34154250

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1429, 1443, 2405, 2858, 2886, 4287, 4810, 7145, 7215, 8574, 14290, 14430, 18577, 21435, 37154, 42870, 52873, 55731, 92885, 105746, 111462, 158619, 185770, 264365, 278655, 317238, 528730, 557310, 687349, 793095, 1374698, 1586190, 2062047, 3436745, 4124094, 6873490, 10310235, 20620470]

約数ペア:

[(1, 20620470), (2, 10310235), (3, 6873490), (5, 4124094), (6, 3436745), (10, 2062047), (13, 1586190), (15, 1374698), (26, 793095), (30, 687349), (37, 557310), (39, 528730), (65, 317238), (74, 278655), (78, 264365), (111, 185770), (130, 158619), (185, 111462), (195, 105746), (222, 92885), (370, 55731), (390, 52873), (481, 42870), (555, 37154), (962, 21435), (1110, 18577), (1429, 14430), (1443, 14290), (2405, 8574), (2858, 7215), (2886, 7145), (4287, 4810)]