2809840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 80

約数和(自身を含む): 7428096

約数和(自身を除く): 4618256

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 103, 110, 124, 155, 176, 206, 220, 248, 310, 341, 412, 440, 496, 515, 620, 682, 824, 880, 1030, 1133, 1240, 1364, 1648, 1705, 2060, 2266, 2480, 2728, 3193, 3410, 4120, 4532, 5456, 5665, 6386, 6820, 8240, 9064, 11330, 12772, 13640, 15965, 18128, 22660, 25544, 27280, 31930, 35123, 45320, 51088, 63860, 70246, 90640, 127720, 140492, 175615, 255440, 280984, 351230, 561968, 702460, 1404920, 2809840]

約数ペア:

[(1, 2809840), (2, 1404920), (4, 702460), (5, 561968), (8, 351230), (10, 280984), (11, 255440), (16, 175615), (20, 140492), (22, 127720), (31, 90640), (40, 70246), (44, 63860), (55, 51088), (62, 45320), (80, 35123), (88, 31930), (103, 27280), (110, 25544), (124, 22660), (155, 18128), (176, 15965), (206, 13640), (220, 12772), (248, 11330), (310, 9064), (341, 8240), (412, 6820), (440, 6386), (496, 5665), (515, 5456), (620, 4532), (682, 4120), (824, 3410), (880, 3193), (1030, 2728), (1133, 2480), (1240, 2266), (1364, 2060), (1648, 1705)]