20656472070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{670447}}^1$

素因数の和:670549

約数の個数: 64

約数和(自身を含む): 54064926720

約数和(自身を除く): 33408454650

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 790, 1027, 1185, 2054, 2370, 3081, 5135, 6162, 10270, 15405, 30810, 670447, 1340894, 2011341, 3352235, 4022682, 6704470, 8715811, 10056705, 17431622, 20113410, 26147433, 43579055, 52294866, 52965313, 87158110, 105930626, 130737165, 158895939, 261474330, 264826565, 317791878, 529653130, 688549069, 794479695, 1377098138, 1588959390, 2065647207, 3442745345, 4131294414, 6885490690, 10328236035, 20656472070]

約数ペア:

[(1, 20656472070), (2, 10328236035), (3, 6885490690), (5, 4131294414), (6, 3442745345), (10, 2065647207), (13, 1588959390), (15, 1377098138), (26, 794479695), (30, 688549069), (39, 529653130), (65, 317791878), (78, 264826565), (79, 261474330), (130, 158895939), (158, 130737165), (195, 105930626), (237, 87158110), (390, 52965313), (395, 52294866), (474, 43579055), (790, 26147433), (1027, 20113410), (1185, 17431622), (2054, 10056705), (2370, 8715811), (3081, 6704470), (5135, 4022682), (6162, 3352235), (10270, 2011341), (15405, 1340894), (30810, 670447)]