31217160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20011}}^1$

素因数の和:20038

約数の個数: 64

約数和(自身を含む): 100860480

約数和(自身を除く): 69643320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20011, 40022, 60033, 80044, 100055, 120066, 160088, 200110, 240132, 260143, 300165, 400220, 480264, 520286, 600330, 780429, 800440, 1040572, 1200660, 1300715, 1560858, 2081144, 2401320, 2601430, 3121716, 3902145, 5202860, 6243432, 7804290, 10405720, 15608580, 31217160]

約数ペア:

[(1, 31217160), (2, 15608580), (3, 10405720), (4, 7804290), (5, 6243432), (6, 5202860), (8, 3902145), (10, 3121716), (12, 2601430), (13, 2401320), (15, 2081144), (20, 1560858), (24, 1300715), (26, 1200660), (30, 1040572), (39, 800440), (40, 780429), (52, 600330), (60, 520286), (65, 480264), (78, 400220), (104, 300165), (120, 260143), (130, 240132), (156, 200110), (195, 160088), (260, 120066), (312, 100055), (390, 80044), (520, 60033), (780, 40022), (1560, 20011)]