155079980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{22739}}^1$

素因数の和:22790

約数の個数: 48

約数和(自身を含む): 366750720

約数和(自身を除く): 211670740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 22739, 45478, 90956, 113695, 227390, 250129, 454780, 500258, 704909, 1000516, 1250645, 1409818, 2501290, 2819636, 3524545, 5002580, 7049090, 7753999, 14098180, 15507998, 31015996, 38769995, 77539990, 155079980]

約数ペア:

[(1, 155079980), (2, 77539990), (4, 38769995), (5, 31015996), (10, 15507998), (11, 14098180), (20, 7753999), (22, 7049090), (31, 5002580), (44, 3524545), (55, 2819636), (62, 2501290), (110, 1409818), (124, 1250645), (155, 1000516), (220, 704909), (310, 500258), (341, 454780), (620, 250129), (682, 227390), (1364, 113695), (1705, 90956), (3410, 45478), (6820, 22739)]