30721890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1107

約数の個数: 64

約数和(自身を含む): 79470720

約数和(自身を除く): 48748830

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 59, 85, 102, 118, 170, 177, 255, 295, 354, 510, 590, 885, 1003, 1021, 1770, 2006, 2042, 3009, 3063, 5015, 5105, 6018, 6126, 10030, 10210, 15045, 15315, 17357, 30090, 30630, 34714, 52071, 60239, 86785, 104142, 120478, 173570, 180717, 260355, 301195, 361434, 520710, 602390, 903585, 1024063, 1807170, 2048126, 3072189, 5120315, 6144378, 10240630, 15360945, 30721890]

約数ペア:

[(1, 30721890), (2, 15360945), (3, 10240630), (5, 6144378), (6, 5120315), (10, 3072189), (15, 2048126), (17, 1807170), (30, 1024063), (34, 903585), (51, 602390), (59, 520710), (85, 361434), (102, 301195), (118, 260355), (170, 180717), (177, 173570), (255, 120478), (295, 104142), (354, 86785), (510, 60239), (590, 52071), (885, 34714), (1003, 30630), (1021, 30090), (1770, 17357), (2006, 15315), (2042, 15045), (3009, 10210), (3063, 10030), (5015, 6126), (5105, 6018)]