1640952016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{300761}}^1$

素因数の和:300811

約数の個数: 40

約数和(自身を含む): 3580270848

約数和(自身を除く): 1939318832

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 5456, 300761, 601522, 1203044, 2406088, 3308371, 4812176, 6616742, 9323591, 13233484, 18647182, 26466968, 37294364, 52933936, 74588728, 102559501, 149177456, 205119002, 410238004, 820476008, 1640952016]

約数ペア:

[(1, 1640952016), (2, 820476008), (4, 410238004), (8, 205119002), (11, 149177456), (16, 102559501), (22, 74588728), (31, 52933936), (44, 37294364), (62, 26466968), (88, 18647182), (124, 13233484), (176, 9323591), (248, 6616742), (341, 4812176), (496, 3308371), (682, 2406088), (1364, 1203044), (2728, 601522), (5456, 300761)]