25766390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 53887680

約数和(自身を除く): 28121290

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 89, 130, 131, 170, 178, 221, 262, 442, 445, 655, 890, 1105, 1157, 1310, 1513, 1703, 2210, 2227, 2314, 3026, 3406, 4454, 5785, 7565, 8515, 11135, 11570, 11659, 15130, 17030, 19669, 22270, 23318, 28951, 39338, 57902, 58295, 98345, 116590, 144755, 151567, 196690, 198203, 289510, 303134, 396406, 757835, 991015, 1515670, 1982030, 2576639, 5153278, 12883195, 25766390]

約数ペア:

[(1, 25766390), (2, 12883195), (5, 5153278), (10, 2576639), (13, 1982030), (17, 1515670), (26, 991015), (34, 757835), (65, 396406), (85, 303134), (89, 289510), (130, 198203), (131, 196690), (170, 151567), (178, 144755), (221, 116590), (262, 98345), (442, 58295), (445, 57902), (655, 39338), (890, 28951), (1105, 23318), (1157, 22270), (1310, 19669), (1513, 17030), (1703, 15130), (2210, 11659), (2227, 11570), (2314, 11135), (3026, 8515), (3406, 7565), (4454, 5785)]