16404980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1928

約数の個数: 48

約数和(自身を含む): 37860480

約数和(自身を除く): 21455500

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 1877, 2185, 3754, 4370, 7508, 8740, 9385, 18770, 35663, 37540, 43171, 71326, 86342, 142652, 172684, 178315, 215855, 356630, 431710, 713260, 820249, 863420, 1640498, 3280996, 4101245, 8202490, 16404980]

約数ペア:

[(1, 16404980), (2, 8202490), (4, 4101245), (5, 3280996), (10, 1640498), (19, 863420), (20, 820249), (23, 713260), (38, 431710), (46, 356630), (76, 215855), (92, 178315), (95, 172684), (115, 142652), (190, 86342), (230, 71326), (380, 43171), (437, 37540), (460, 35663), (874, 18770), (1748, 9385), (1877, 8740), (2185, 7508), (3754, 4370)]