16401940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2539}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 38404800

約数和(自身を除く): 22002860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 2539, 3230, 5078, 6460, 10156, 12695, 25390, 43163, 48241, 50780, 86326, 96482, 172652, 192964, 215815, 241205, 431630, 482410, 820097, 863260, 964820, 1640194, 3280388, 4100485, 8200970, 16401940]

約数ペア:

[(1, 16401940), (2, 8200970), (4, 4100485), (5, 3280388), (10, 1640194), (17, 964820), (19, 863260), (20, 820097), (34, 482410), (38, 431630), (68, 241205), (76, 215815), (85, 192964), (95, 172652), (170, 96482), (190, 86326), (323, 50780), (340, 48241), (380, 43163), (646, 25390), (1292, 12695), (1615, 10156), (2539, 6460), (3230, 5078)]