257602020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19427}}^1$

素因数の和:19469

約数の個数: 96

約数和(自身を含む): 822503808

約数和(自身を除く): 564901788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 19427, 38854, 58281, 77708, 97135, 116562, 194270, 233124, 252551, 291405, 330259, 388540, 505102, 582810, 660518, 757653, 990777, 1010204, 1165620, 1262755, 1321036, 1515306, 1651295, 1981554, 2525510, 3030612, 3302590, 3788265, 3963108, 4293367, 4953885, 5051020, 6605180, 7576530, 8586734, 9907770, 12880101, 15153060, 17173468, 19815540, 21466835, 25760202, 42933670, 51520404, 64400505, 85867340, 128801010, 257602020]

約数ペア:

[(1, 257602020), (2, 128801010), (3, 85867340), (4, 64400505), (5, 51520404), (6, 42933670), (10, 25760202), (12, 21466835), (13, 19815540), (15, 17173468), (17, 15153060), (20, 12880101), (26, 9907770), (30, 8586734), (34, 7576530), (39, 6605180), (51, 5051020), (52, 4953885), (60, 4293367), (65, 3963108), (68, 3788265), (78, 3302590), (85, 3030612), (102, 2525510), (130, 1981554), (156, 1651295), (170, 1515306), (195, 1321036), (204, 1262755), (221, 1165620), (255, 1010204), (260, 990777), (340, 757653), (390, 660518), (442, 582810), (510, 505102), (663, 388540), (780, 330259), (884, 291405), (1020, 252551), (1105, 233124), (1326, 194270), (2210, 116562), (2652, 97135), (3315, 77708), (4420, 58281), (6630, 38854), (13260, 19427)]