81272130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 200880000

約数和(自身を除く): 119607870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 89, 122, 178, 183, 267, 305, 366, 445, 499, 534, 610, 890, 915, 998, 1335, 1497, 1830, 2495, 2670, 2994, 4990, 5429, 7485, 10858, 14970, 16287, 27145, 30439, 32574, 44411, 54290, 60878, 81435, 88822, 91317, 133233, 152195, 162870, 182634, 222055, 266466, 304390, 444110, 456585, 666165, 913170, 1332330, 2709071, 5418142, 8127213, 13545355, 16254426, 27090710, 40636065, 81272130]

約数ペア:

[(1, 81272130), (2, 40636065), (3, 27090710), (5, 16254426), (6, 13545355), (10, 8127213), (15, 5418142), (30, 2709071), (61, 1332330), (89, 913170), (122, 666165), (178, 456585), (183, 444110), (267, 304390), (305, 266466), (366, 222055), (445, 182634), (499, 162870), (534, 152195), (610, 133233), (890, 91317), (915, 88822), (998, 81435), (1335, 60878), (1497, 54290), (1830, 44411), (2495, 32574), (2670, 30439), (2994, 27145), (4990, 16287), (5429, 14970), (7485, 10858)]