809984120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1477

約数の個数: 128

約数和(自身を含む): 2101524480

約数和(自身を除く): 1291540360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 43, 44, 55, 62, 86, 88, 110, 124, 155, 172, 215, 220, 248, 310, 341, 344, 430, 440, 473, 620, 682, 860, 946, 1240, 1333, 1364, 1381, 1705, 1720, 1892, 2365, 2666, 2728, 2762, 3410, 3784, 4730, 5332, 5524, 6665, 6820, 6905, 9460, 10664, 11048, 13330, 13640, 13810, 14663, 15191, 18920, 26660, 27620, 29326, 30382, 42811, 53320, 55240, 58652, 59383, 60764, 73315, 75955, 85622, 117304, 118766, 121528, 146630, 151910, 171244, 214055, 237532, 293260, 296915, 303820, 342488, 428110, 470921, 475064, 586520, 593830, 607640, 653213, 856220, 941842, 1187660, 1306426, 1712440, 1840873, 1883684, 2354605, 2375320, 2612852, 3266065, 3681746, 3767368, 4709210, 5225704, 6532130, 7363492, 9204365, 9418420, 13064260, 14726984, 18408730, 18836840, 20249603, 26128520, 36817460, 40499206, 73634920, 80998412, 101248015, 161996824, 202496030, 404992060, 809984120]

約数ペア:

[(1, 809984120), (2, 404992060), (4, 202496030), (5, 161996824), (8, 101248015), (10, 80998412), (11, 73634920), (20, 40499206), (22, 36817460), (31, 26128520), (40, 20249603), (43, 18836840), (44, 18408730), (55, 14726984), (62, 13064260), (86, 9418420), (88, 9204365), (110, 7363492), (124, 6532130), (155, 5225704), (172, 4709210), (215, 3767368), (220, 3681746), (248, 3266065), (310, 2612852), (341, 2375320), (344, 2354605), (430, 1883684), (440, 1840873), (473, 1712440), (620, 1306426), (682, 1187660), (860, 941842), (946, 856220), (1240, 653213), (1333, 607640), (1364, 593830), (1381, 586520), (1705, 475064), (1720, 470921), (1892, 428110), (2365, 342488), (2666, 303820), (2728, 296915), (2762, 293260), (3410, 237532), (3784, 214055), (4730, 171244), (5332, 151910), (5524, 146630), (6665, 121528), (6820, 118766), (6905, 117304), (9460, 85622), (10664, 75955), (11048, 73315), (13330, 60764), (13640, 59383), (13810, 58652), (14663, 55240), (15191, 53320), (18920, 42811), (26660, 30382), (27620, 29326)]