39979980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:110

約数の個数: 240

約数和(自身を含む): 139043520

約数和(自身を除く): 99063540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 29, 30, 36, 37, 45, 46, 54, 58, 60, 69, 74, 81, 87, 90, 92, 108, 111, 115, 116, 135, 138, 145, 148, 162, 174, 180, 185, 207, 222, 230, 261, 270, 276, 290, 324, 333, 345, 348, 370, 405, 414, 435, 444, 460, 522, 540, 555, 580, 621, 666, 667, 690, 740, 783, 810, 828, 851, 870, 999, 1035, 1044, 1073, 1110, 1242, 1305, 1332, 1334, 1380, 1566, 1620, 1665, 1702, 1740, 1863, 1998, 2001, 2070, 2146, 2220, 2349, 2484, 2553, 2610, 2668, 2997, 3105, 3132, 3219, 3330, 3335, 3404, 3726, 3915, 3996, 4002, 4140, 4255, 4292, 4698, 4995, 5106, 5220, 5365, 5994, 6003, 6210, 6438, 6660, 6670, 7452, 7659, 7830, 8004, 8510, 9315, 9396, 9657, 9990, 10005, 10212, 10730, 11745, 11988, 12006, 12420, 12765, 12876, 13340, 14985, 15318, 15660, 16095, 17020, 18009, 18630, 19314, 19980, 20010, 21460, 22977, 23490, 24012, 24679, 25530, 28971, 29970, 30015, 30636, 32190, 36018, 37260, 38295, 38628, 40020, 45954, 46980, 48285, 49358, 51060, 54027, 57942, 59940, 60030, 64380, 68931, 72036, 74037, 76590, 86913, 90045, 91908, 96570, 98716, 108054, 114885, 115884, 120060, 123395, 137862, 144855, 148074, 153180, 173826, 180090, 193140, 216108, 222111, 229770, 246790, 270135, 275724, 289710, 296148, 344655, 347652, 360180, 370185, 434565, 444222, 459540, 493580, 540270, 579420, 666333, 689310, 740370, 869130, 888444, 1080540, 1110555, 1332666, 1378620, 1480740, 1738260, 1998999, 2221110, 2665332, 3331665, 3997998, 4442220, 6663330, 7995996, 9994995, 13326660, 19989990, 39979980]

約数ペア:

[(1, 39979980), (2, 19989990), (3, 13326660), (4, 9994995), (5, 7995996), (6, 6663330), (9, 4442220), (10, 3997998), (12, 3331665), (15, 2665332), (18, 2221110), (20, 1998999), (23, 1738260), (27, 1480740), (29, 1378620), (30, 1332666), (36, 1110555), (37, 1080540), (45, 888444), (46, 869130), (54, 740370), (58, 689310), (60, 666333), (69, 579420), (74, 540270), (81, 493580), (87, 459540), (90, 444222), (92, 434565), (108, 370185), (111, 360180), (115, 347652), (116, 344655), (135, 296148), (138, 289710), (145, 275724), (148, 270135), (162, 246790), (174, 229770), (180, 222111), (185, 216108), (207, 193140), (222, 180090), (230, 173826), (261, 153180), (270, 148074), (276, 144855), (290, 137862), (324, 123395), (333, 120060), (345, 115884), (348, 114885), (370, 108054), (405, 98716), (414, 96570), (435, 91908), (444, 90045), (460, 86913), (522, 76590), (540, 74037), (555, 72036), (580, 68931), (621, 64380), (666, 60030), (667, 59940), (690, 57942), (740, 54027), (783, 51060), (810, 49358), (828, 48285), (851, 46980), (870, 45954), (999, 40020), (1035, 38628), (1044, 38295), (1073, 37260), (1110, 36018), (1242, 32190), (1305, 30636), (1332, 30015), (1334, 29970), (1380, 28971), (1566, 25530), (1620, 24679), (1665, 24012), (1702, 23490), (1740, 22977), (1863, 21460), (1998, 20010), (2001, 19980), (2070, 19314), (2146, 18630), (2220, 18009), (2349, 17020), (2484, 16095), (2553, 15660), (2610, 15318), (2668, 14985), (2997, 13340), (3105, 12876), (3132, 12765), (3219, 12420), (3330, 12006), (3335, 11988), (3404, 11745), (3726, 10730), (3915, 10212), (3996, 10005), (4002, 9990), (4140, 9657), (4255, 9396), (4292, 9315), (4698, 8510), (4995, 8004), (5106, 7830), (5220, 7659), (5365, 7452), (5994, 6670), (6003, 6660), (6210, 6438)]