165018640

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6719}}^1$

素因数の和:7039

約数の個数: 40

約数和(自身を含む): 384975360

約数和(自身を除く): 219956720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 3070, 4912, 6140, 6719, 12280, 13438, 24560, 26876, 33595, 53752, 67190, 107504, 134380, 268760, 537520, 2062733, 4125466, 8250932, 10313665, 16501864, 20627330, 33003728, 41254660, 82509320, 165018640]

約数ペア:

[(1, 165018640), (2, 82509320), (4, 41254660), (5, 33003728), (8, 20627330), (10, 16501864), (16, 10313665), (20, 8250932), (40, 4125466), (80, 2062733), (307, 537520), (614, 268760), (1228, 134380), (1535, 107504), (2456, 67190), (3070, 53752), (4912, 33595), (6140, 26876), (6719, 24560), (12280, 13438)]