18991328890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{6473}}^1$

素因数の和:6727

約数の個数: 64

約数和(自身を含む): 36134242560

約数和(自身を除く): 17142913670

約数列:

[1, 2, 5, 10, 29, 58, 67, 134, 145, 151, 290, 302, 335, 670, 755, 1510, 1943, 3886, 4379, 6473, 8758, 9715, 10117, 12946, 19430, 20234, 21895, 32365, 43790, 50585, 64730, 101170, 187717, 293393, 375434, 433691, 586786, 867382, 938585, 977423, 1466965, 1877170, 1954846, 2168455, 2933930, 4336910, 4887115, 9774230, 12577039, 25154078, 28345267, 56690534, 62885195, 65487341, 125770390, 130974682, 141726335, 283452670, 327436705, 654873410, 1899132889, 3798265778, 9495664445, 18991328890]

約数ペア:

[(1, 18991328890), (2, 9495664445), (5, 3798265778), (10, 1899132889), (29, 654873410), (58, 327436705), (67, 283452670), (134, 141726335), (145, 130974682), (151, 125770390), (290, 65487341), (302, 62885195), (335, 56690534), (670, 28345267), (755, 25154078), (1510, 12577039), (1943, 9774230), (3886, 4887115), (4379, 4336910), (6473, 2933930), (8758, 2168455), (9715, 1954846), (10117, 1877170), (12946, 1466965), (19430, 977423), (20234, 938585), (21895, 867382), (32365, 586786), (43790, 433691), (50585, 375434), (64730, 293393), (101170, 187717)]