1540169900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{719}}^1$

素因数の和:1455

約数の個数: 72

約数和(自身を含む): 3459778560

約数和(自身を除く): 1919608660

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 691, 719, 775, 1382, 1438, 1550, 2764, 2876, 3100, 3455, 3595, 6910, 7190, 13820, 14380, 17275, 17975, 21421, 22289, 34550, 35950, 42842, 44578, 69100, 71900, 85684, 89156, 107105, 111445, 214210, 222890, 428420, 445780, 496829, 535525, 557225, 993658, 1071050, 1114450, 1987316, 2142100, 2228900, 2484145, 4968290, 9936580, 12420725, 15401699, 24841450, 30803398, 49682900, 61606796, 77008495, 154016990, 308033980, 385042475, 770084950, 1540169900]

約数ペア:

[(1, 1540169900), (2, 770084950), (4, 385042475), (5, 308033980), (10, 154016990), (20, 77008495), (25, 61606796), (31, 49682900), (50, 30803398), (62, 24841450), (100, 15401699), (124, 12420725), (155, 9936580), (310, 4968290), (620, 2484145), (691, 2228900), (719, 2142100), (775, 1987316), (1382, 1114450), (1438, 1071050), (1550, 993658), (2764, 557225), (2876, 535525), (3100, 496829), (3455, 445780), (3595, 428420), (6910, 222890), (7190, 214210), (13820, 111445), (14380, 107105), (17275, 89156), (17975, 85684), (21421, 71900), (22289, 69100), (34550, 44578), (35950, 42842)]