39774920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 93139200

約数和(自身を除く): 53364280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 79, 82, 158, 164, 205, 307, 316, 328, 395, 410, 614, 632, 790, 820, 1228, 1535, 1580, 1640, 2456, 3070, 3160, 3239, 6140, 6478, 12280, 12587, 12956, 16195, 24253, 25174, 25912, 32390, 48506, 50348, 62935, 64780, 97012, 100696, 121265, 125870, 129560, 194024, 242530, 251740, 485060, 503480, 970120, 994373, 1988746, 3977492, 4971865, 7954984, 9943730, 19887460, 39774920]

約数ペア:

[(1, 39774920), (2, 19887460), (4, 9943730), (5, 7954984), (8, 4971865), (10, 3977492), (20, 1988746), (40, 994373), (41, 970120), (79, 503480), (82, 485060), (158, 251740), (164, 242530), (205, 194024), (307, 129560), (316, 125870), (328, 121265), (395, 100696), (410, 97012), (614, 64780), (632, 62935), (790, 50348), (820, 48506), (1228, 32390), (1535, 25912), (1580, 25174), (1640, 24253), (2456, 16195), (3070, 12956), (3160, 12587), (3239, 12280), (6140, 6478)]