31005720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1550

約数の個数: 128

約数和(自身を含む): 108864000

約数和(自身を除く): 77858280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1511, 1710, 2052, 2280, 2565, 3022, 3420, 4104, 4533, 5130, 6044, 6840, 7555, 9066, 10260, 12088, 13599, 15110, 18132, 20520, 22665, 27198, 28709, 30220, 36264, 40797, 45330, 54396, 57418, 60440, 67995, 81594, 86127, 90660, 108792, 114836, 135990, 143545, 163188, 172254, 181320, 203985, 229672, 258381, 271980, 287090, 326376, 344508, 407970, 430635, 516762, 543960, 574180, 689016, 775143, 815940, 861270, 1033524, 1148360, 1291905, 1550286, 1631880, 1722540, 2067048, 2583810, 3100572, 3445080, 3875715, 5167620, 6201144, 7751430, 10335240, 15502860, 31005720]

約数ペア:

[(1, 31005720), (2, 15502860), (3, 10335240), (4, 7751430), (5, 6201144), (6, 5167620), (8, 3875715), (9, 3445080), (10, 3100572), (12, 2583810), (15, 2067048), (18, 1722540), (19, 1631880), (20, 1550286), (24, 1291905), (27, 1148360), (30, 1033524), (36, 861270), (38, 815940), (40, 775143), (45, 689016), (54, 574180), (57, 543960), (60, 516762), (72, 430635), (76, 407970), (90, 344508), (95, 326376), (108, 287090), (114, 271980), (120, 258381), (135, 229672), (152, 203985), (171, 181320), (180, 172254), (190, 163188), (216, 143545), (228, 135990), (270, 114836), (285, 108792), (342, 90660), (360, 86127), (380, 81594), (456, 67995), (513, 60440), (540, 57418), (570, 54396), (684, 45330), (760, 40797), (855, 36264), (1026, 30220), (1080, 28709), (1140, 27198), (1368, 22665), (1511, 20520), (1710, 18132), (2052, 15110), (2280, 13599), (2565, 12088), (3022, 10260), (3420, 9066), (4104, 7555), (4533, 6840), (5130, 6044)]