8840780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 20556480

約数和(自身を除く): 11715700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 919, 962, 1838, 1924, 2405, 3676, 4595, 4810, 9190, 9620, 11947, 18380, 23894, 34003, 47788, 59735, 68006, 119470, 136012, 170015, 238940, 340030, 442039, 680060, 884078, 1768156, 2210195, 4420390, 8840780]

約数ペア:

[(1, 8840780), (2, 4420390), (4, 2210195), (5, 1768156), (10, 884078), (13, 680060), (20, 442039), (26, 340030), (37, 238940), (52, 170015), (65, 136012), (74, 119470), (130, 68006), (148, 59735), (185, 47788), (260, 34003), (370, 23894), (481, 18380), (740, 11947), (919, 9620), (962, 9190), (1838, 4810), (1924, 4595), (2405, 3676)]