20806094438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{829}}^1$

素因数の和:1161

約数の個数: 64

約数和(自身を含む): 34260408000

約数和(自身を除く): 13454313562

約数列:

[1, 2, 19, 38, 41, 82, 89, 178, 181, 362, 779, 829, 1558, 1658, 1691, 3382, 3439, 3649, 6878, 7298, 7421, 14842, 15751, 16109, 31502, 32218, 33989, 67978, 69331, 73781, 138662, 140999, 147562, 150049, 281998, 300098, 306071, 612142, 645791, 660469, 1291582, 1320938, 1401839, 2803678, 2850931, 3025021, 5701862, 6050042, 6152009, 12304018, 12548911, 13354361, 25097822, 26708722, 57475399, 114950798, 116888171, 233776342, 253732859, 507465718, 547528801, 1095057602, 10403047219, 20806094438]

約数ペア:

[(1, 20806094438), (2, 10403047219), (19, 1095057602), (38, 547528801), (41, 507465718), (82, 253732859), (89, 233776342), (178, 116888171), (181, 114950798), (362, 57475399), (779, 26708722), (829, 25097822), (1558, 13354361), (1658, 12548911), (1691, 12304018), (3382, 6152009), (3439, 6050042), (3649, 5701862), (6878, 3025021), (7298, 2850931), (7421, 2803678), (14842, 1401839), (15751, 1320938), (16109, 1291582), (31502, 660469), (32218, 645791), (33989, 612142), (67978, 306071), (69331, 300098), (73781, 281998), (138662, 150049), (140999, 147562)]