1998654880

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{2399}}^1$

素因数の和:2582

約数の個数: 96

約数和(自身を含む): 4877107200

約数和(自身を除く): 2878452320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 127, 160, 164, 205, 254, 328, 410, 508, 635, 656, 820, 1016, 1270, 1312, 1640, 2032, 2399, 2540, 3280, 4064, 4798, 5080, 5207, 6560, 9596, 10160, 10414, 11995, 19192, 20320, 20828, 23990, 26035, 38384, 41656, 47980, 52070, 76768, 83312, 95960, 98359, 104140, 166624, 191920, 196718, 208280, 304673, 383840, 393436, 416560, 491795, 609346, 786872, 833120, 983590, 1218692, 1523365, 1573744, 1967180, 2437384, 3046730, 3147488, 3934360, 4874768, 6093460, 7868720, 9749536, 12186920, 12491593, 15737440, 24373840, 24983186, 48747680, 49966372, 62457965, 99932744, 124915930, 199865488, 249831860, 399730976, 499663720, 999327440, 1998654880]

約数ペア:

[(1, 1998654880), (2, 999327440), (4, 499663720), (5, 399730976), (8, 249831860), (10, 199865488), (16, 124915930), (20, 99932744), (32, 62457965), (40, 49966372), (41, 48747680), (80, 24983186), (82, 24373840), (127, 15737440), (160, 12491593), (164, 12186920), (205, 9749536), (254, 7868720), (328, 6093460), (410, 4874768), (508, 3934360), (635, 3147488), (656, 3046730), (820, 2437384), (1016, 1967180), (1270, 1573744), (1312, 1523365), (1640, 1218692), (2032, 983590), (2399, 833120), (2540, 786872), (3280, 609346), (4064, 491795), (4798, 416560), (5080, 393436), (5207, 383840), (6560, 304673), (9596, 208280), (10160, 196718), (10414, 191920), (11995, 166624), (19192, 104140), (20320, 98359), (20828, 95960), (23990, 83312), (26035, 76768), (38384, 52070), (41656, 47980)]