72107820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:462

約数の個数: 144

約数和(自身を含む): 233539488

約数和(自身を除く): 161431668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 135, 148, 162, 180, 185, 222, 243, 270, 324, 333, 370, 401, 405, 444, 486, 540, 555, 666, 740, 802, 810, 972, 999, 1110, 1203, 1215, 1332, 1604, 1620, 1665, 1998, 2005, 2220, 2406, 2430, 2997, 3330, 3609, 3996, 4010, 4812, 4860, 4995, 5994, 6015, 6660, 7218, 8020, 8991, 9990, 10827, 11988, 12030, 14436, 14837, 14985, 17982, 18045, 19980, 21654, 24060, 29674, 29970, 32481, 35964, 36090, 43308, 44511, 44955, 54135, 59348, 59940, 64962, 72180, 74185, 89022, 89910, 97443, 108270, 129924, 133533, 148370, 162405, 178044, 179820, 194886, 216540, 222555, 267066, 296740, 324810, 389772, 400599, 445110, 487215, 534132, 649620, 667665, 801198, 890220, 974430, 1201797, 1335330, 1602396, 1948860, 2002995, 2403594, 2670660, 3605391, 4005990, 4807188, 6008985, 7210782, 8011980, 12017970, 14421564, 18026955, 24035940, 36053910, 72107820]

約数ペア:

[(1, 72107820), (2, 36053910), (3, 24035940), (4, 18026955), (5, 14421564), (6, 12017970), (9, 8011980), (10, 7210782), (12, 6008985), (15, 4807188), (18, 4005990), (20, 3605391), (27, 2670660), (30, 2403594), (36, 2002995), (37, 1948860), (45, 1602396), (54, 1335330), (60, 1201797), (74, 974430), (81, 890220), (90, 801198), (108, 667665), (111, 649620), (135, 534132), (148, 487215), (162, 445110), (180, 400599), (185, 389772), (222, 324810), (243, 296740), (270, 267066), (324, 222555), (333, 216540), (370, 194886), (401, 179820), (405, 178044), (444, 162405), (486, 148370), (540, 133533), (555, 129924), (666, 108270), (740, 97443), (802, 89910), (810, 89022), (972, 74185), (999, 72180), (1110, 64962), (1203, 59940), (1215, 59348), (1332, 54135), (1604, 44955), (1620, 44511), (1665, 43308), (1998, 36090), (2005, 35964), (2220, 32481), (2406, 29970), (2430, 29674), (2997, 24060), (3330, 21654), (3609, 19980), (3996, 18045), (4010, 17982), (4812, 14985), (4860, 14837), (4995, 14436), (5994, 12030), (6015, 11988), (6660, 10827), (7218, 9990), (8020, 8991)]