28231740

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 91789152

約数和(自身を除く): 63557412

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, 157, 162, 180, 185, 222, 243, 270, 314, 324, 333, 370, 405, 444, 471, 486, 540, 555, 628, 666, 740, 785, 810, 942, 972, 999, 1110, 1215, 1332, 1413, 1570, 1620, 1665, 1884, 1998, 2220, 2355, 2430, 2826, 2997, 3140, 3330, 3996, 4239, 4710, 4860, 4995, 5652, 5809, 5994, 6660, 7065, 8478, 8991, 9420, 9990, 11618, 11988, 12717, 14130, 14985, 16956, 17427, 17982, 19980, 21195, 23236, 25434, 28260, 29045, 29970, 34854, 35964, 38151, 42390, 44955, 50868, 52281, 58090, 59940, 63585, 69708, 76302, 84780, 87135, 89910, 104562, 116180, 127170, 152604, 156843, 174270, 179820, 190755, 209124, 254340, 261405, 313686, 348540, 381510, 470529, 522810, 627372, 763020, 784215, 941058, 1045620, 1411587, 1568430, 1882116, 2352645, 2823174, 3136860, 4705290, 5646348, 7057935, 9410580, 14115870, 28231740]

約数ペア:

[(1, 28231740), (2, 14115870), (3, 9410580), (4, 7057935), (5, 5646348), (6, 4705290), (9, 3136860), (10, 2823174), (12, 2352645), (15, 1882116), (18, 1568430), (20, 1411587), (27, 1045620), (30, 941058), (36, 784215), (37, 763020), (45, 627372), (54, 522810), (60, 470529), (74, 381510), (81, 348540), (90, 313686), (108, 261405), (111, 254340), (135, 209124), (148, 190755), (157, 179820), (162, 174270), (180, 156843), (185, 152604), (222, 127170), (243, 116180), (270, 104562), (314, 89910), (324, 87135), (333, 84780), (370, 76302), (405, 69708), (444, 63585), (471, 59940), (486, 58090), (540, 52281), (555, 50868), (628, 44955), (666, 42390), (740, 38151), (785, 35964), (810, 34854), (942, 29970), (972, 29045), (999, 28260), (1110, 25434), (1215, 23236), (1332, 21195), (1413, 19980), (1570, 17982), (1620, 17427), (1665, 16956), (1884, 14985), (1998, 14130), (2220, 12717), (2355, 11988), (2430, 11618), (2826, 9990), (2997, 9420), (3140, 8991), (3330, 8478), (3996, 7065), (4239, 6660), (4710, 5994), (4860, 5809), (4995, 5652)]