31501477520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{121571}}^1$

素因数の和:121704

約数の個数: 80

約数和(自身を含む): 75977637120

約数和(自身を除く): 44476159600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 158, 164, 205, 316, 328, 395, 410, 632, 656, 790, 820, 1264, 1580, 1640, 3160, 3239, 3280, 6320, 6478, 12956, 16195, 25912, 32390, 51824, 64780, 121571, 129560, 243142, 259120, 486284, 607855, 972568, 1215710, 1945136, 2431420, 4862840, 4984411, 9604109, 9725680, 9968822, 19208218, 19937644, 24922055, 38416436, 39875288, 48020545, 49844110, 76832872, 79750576, 96041090, 99688220, 153665744, 192082180, 199376440, 384164360, 393768469, 398752880, 768328720, 787536938, 1575073876, 1968842345, 3150147752, 3937684690, 6300295504, 7875369380, 15750738760, 31501477520]

約数ペア:

[(1, 31501477520), (2, 15750738760), (4, 7875369380), (5, 6300295504), (8, 3937684690), (10, 3150147752), (16, 1968842345), (20, 1575073876), (40, 787536938), (41, 768328720), (79, 398752880), (80, 393768469), (82, 384164360), (158, 199376440), (164, 192082180), (205, 153665744), (316, 99688220), (328, 96041090), (395, 79750576), (410, 76832872), (632, 49844110), (656, 48020545), (790, 39875288), (820, 38416436), (1264, 24922055), (1580, 19937644), (1640, 19208218), (3160, 9968822), (3239, 9725680), (3280, 9604109), (6320, 4984411), (6478, 4862840), (12956, 2431420), (16195, 1945136), (25912, 1215710), (32390, 972568), (51824, 607855), (64780, 486284), (121571, 259120), (129560, 243142)]