28428560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 70977600

約数和(自身を除く): 42549040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 317, 380, 472, 590, 634, 760, 944, 1121, 1180, 1268, 1520, 1585, 2242, 2360, 2536, 3170, 4484, 4720, 5072, 5605, 6023, 6340, 8968, 11210, 12046, 12680, 17936, 18703, 22420, 24092, 25360, 30115, 37406, 44840, 48184, 60230, 74812, 89680, 93515, 96368, 120460, 149624, 187030, 240920, 299248, 355357, 374060, 481840, 710714, 748120, 1421428, 1496240, 1776785, 2842856, 3553570, 5685712, 7107140, 14214280, 28428560]

約数ペア:

[(1, 28428560), (2, 14214280), (4, 7107140), (5, 5685712), (8, 3553570), (10, 2842856), (16, 1776785), (19, 1496240), (20, 1421428), (38, 748120), (40, 710714), (59, 481840), (76, 374060), (80, 355357), (95, 299248), (118, 240920), (152, 187030), (190, 149624), (236, 120460), (295, 96368), (304, 93515), (317, 89680), (380, 74812), (472, 60230), (590, 48184), (634, 44840), (760, 37406), (944, 30115), (1121, 25360), (1180, 24092), (1268, 22420), (1520, 18703), (1585, 17936), (2242, 12680), (2360, 12046), (2536, 11210), (3170, 8968), (4484, 6340), (4720, 6023), (5072, 5605)]