20853487905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1\times {\mathrm{2749}}^1$

素因数の和:3438

約数の個数: 64

約数和(自身を含む): 36009600000

約数和(自身を除く): 15156112095

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 619, 645, 817, 1857, 2451, 2749, 3095, 4085, 8247, 9285, 11761, 12255, 13745, 26617, 35283, 41235, 52231, 58805, 79851, 118207, 133085, 156693, 176415, 261155, 354621, 399255, 505723, 591035, 783465, 1517169, 1701631, 1773105, 2245933, 2528615, 5104893, 6737799, 7585845, 8508155, 11229665, 25524465, 32330989, 33688995, 73170133, 96992967, 161654945, 219510399, 365850665, 484964835, 1097551995, 1390232527, 4170697581, 6951162635, 20853487905]

約数ペア:

[(1, 20853487905), (3, 6951162635), (5, 4170697581), (15, 1390232527), (19, 1097551995), (43, 484964835), (57, 365850665), (95, 219510399), (129, 161654945), (215, 96992967), (285, 73170133), (619, 33688995), (645, 32330989), (817, 25524465), (1857, 11229665), (2451, 8508155), (2749, 7585845), (3095, 6737799), (4085, 5104893), (8247, 2528615), (9285, 2245933), (11761, 1773105), (12255, 1701631), (13745, 1517169), (26617, 783465), (35283, 591035), (41235, 505723), (52231, 399255), (58805, 354621), (79851, 261155), (118207, 176415), (133085, 156693)]