128676840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6421}}^1$

素因数の和:6602

約数の個数: 64

約数和(自身を含む): 388402560

約数和(自身を除く): 259725720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 1002, 1336, 1670, 2004, 2505, 3340, 4008, 5010, 6421, 6680, 10020, 12842, 19263, 20040, 25684, 32105, 38526, 51368, 64210, 77052, 96315, 128420, 154104, 192630, 256840, 385260, 770520, 1072307, 2144614, 3216921, 4289228, 5361535, 6433842, 8578456, 10723070, 12867684, 16084605, 21446140, 25735368, 32169210, 42892280, 64338420, 128676840]

約数ペア:

[(1, 128676840), (2, 64338420), (3, 42892280), (4, 32169210), (5, 25735368), (6, 21446140), (8, 16084605), (10, 12867684), (12, 10723070), (15, 8578456), (20, 6433842), (24, 5361535), (30, 4289228), (40, 3216921), (60, 2144614), (120, 1072307), (167, 770520), (334, 385260), (501, 256840), (668, 192630), (835, 154104), (1002, 128420), (1336, 96315), (1670, 77052), (2004, 64210), (2505, 51368), (3340, 38526), (4008, 32105), (5010, 25684), (6421, 20040), (6680, 19263), (10020, 12842)]