1078681780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^2\times {\mathrm{619}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 2503277280

約数和(自身を除く): 1424595500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 619, 890, 979, 1238, 1780, 1958, 2476, 3095, 3916, 4895, 6190, 6809, 7921, 9790, 12380, 13618, 15842, 19580, 27236, 31684, 34045, 39605, 55091, 68090, 79210, 87131, 110182, 136180, 158420, 174262, 220364, 275455, 348524, 435655, 550910, 606001, 871310, 1101820, 1212002, 1742620, 2424004, 3030005, 4903099, 6060010, 9806198, 12120020, 19612396, 24515495, 49030990, 53934089, 98061980, 107868178, 215736356, 269670445, 539340890, 1078681780]

約数ペア:

[(1, 1078681780), (2, 539340890), (4, 269670445), (5, 215736356), (10, 107868178), (11, 98061980), (20, 53934089), (22, 49030990), (44, 24515495), (55, 19612396), (89, 12120020), (110, 9806198), (178, 6060010), (220, 4903099), (356, 3030005), (445, 2424004), (619, 1742620), (890, 1212002), (979, 1101820), (1238, 871310), (1780, 606001), (1958, 550910), (2476, 435655), (3095, 348524), (3916, 275455), (4895, 220364), (6190, 174262), (6809, 158420), (7921, 136180), (9790, 110182), (12380, 87131), (13618, 79210), (15842, 68090), (19580, 55091), (27236, 39605), (31684, 34045)]