28035720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 160

約数和(自身を含む): 99970200

約数和(自身を除く): 71934480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 255, 270, 306, 324, 340, 360, 405, 408, 459, 509, 510, 540, 612, 648, 680, 765, 810, 918, 1018, 1020, 1080, 1224, 1377, 1527, 1530, 1620, 1836, 2036, 2040, 2295, 2545, 2754, 3054, 3060, 3240, 3672, 4072, 4581, 4590, 5090, 5508, 6108, 6120, 6885, 7635, 8653, 9162, 9180, 10180, 11016, 12216, 13743, 13770, 15270, 17306, 18324, 18360, 20360, 22905, 25959, 27486, 27540, 30540, 34612, 36648, 41229, 43265, 45810, 51918, 54972, 55080, 61080, 68715, 69224, 77877, 82458, 86530, 91620, 103836, 109944, 129795, 137430, 155754, 164916, 173060, 183240, 206145, 207672, 233631, 259590, 274860, 311508, 329832, 346120, 389385, 412290, 467262, 519180, 549720, 623016, 700893, 778770, 824580, 934524, 1038360, 1168155, 1401786, 1557540, 1649160, 1869048, 2336310, 2803572, 3115080, 3504465, 4672620, 5607144, 7008930, 9345240, 14017860, 28035720]

約数ペア:

[(1, 28035720), (2, 14017860), (3, 9345240), (4, 7008930), (5, 5607144), (6, 4672620), (8, 3504465), (9, 3115080), (10, 2803572), (12, 2336310), (15, 1869048), (17, 1649160), (18, 1557540), (20, 1401786), (24, 1168155), (27, 1038360), (30, 934524), (34, 824580), (36, 778770), (40, 700893), (45, 623016), (51, 549720), (54, 519180), (60, 467262), (68, 412290), (72, 389385), (81, 346120), (85, 329832), (90, 311508), (102, 274860), (108, 259590), (120, 233631), (135, 207672), (136, 206145), (153, 183240), (162, 173060), (170, 164916), (180, 155754), (204, 137430), (216, 129795), (255, 109944), (270, 103836), (306, 91620), (324, 86530), (340, 82458), (360, 77877), (405, 69224), (408, 68715), (459, 61080), (509, 55080), (510, 54972), (540, 51918), (612, 45810), (648, 43265), (680, 41229), (765, 36648), (810, 34612), (918, 30540), (1018, 27540), (1020, 27486), (1080, 25959), (1224, 22905), (1377, 20360), (1527, 18360), (1530, 18324), (1620, 17306), (1836, 15270), (2036, 13770), (2040, 13743), (2295, 12216), (2545, 11016), (2754, 10180), (3054, 9180), (3060, 9162), (3240, 8653), (3672, 7635), (4072, 6885), (4581, 6120), (4590, 6108), (5090, 5508)]