16638420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6449}}^1$

素因数の和:6504

約数の個数: 48

約数和(自身を含む): 47678400

約数和(自身を除く): 31039980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 6449, 12898, 19347, 25796, 32245, 38694, 64490, 77388, 96735, 128980, 193470, 277307, 386940, 554614, 831921, 1109228, 1386535, 1663842, 2773070, 3327684, 4159605, 5546140, 8319210, 16638420]

約数ペア:

[(1, 16638420), (2, 8319210), (3, 5546140), (4, 4159605), (5, 3327684), (6, 2773070), (10, 1663842), (12, 1386535), (15, 1109228), (20, 831921), (30, 554614), (43, 386940), (60, 277307), (86, 193470), (129, 128980), (172, 96735), (215, 77388), (258, 64490), (430, 38694), (516, 32245), (645, 25796), (860, 19347), (1290, 12898), (2580, 6449)]