78159900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:453

約数の個数: 216

約数和(自身を含む): 283992240

約数和(自身を除く): 205832340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 49, 50, 52, 60, 65, 70, 75, 78, 84, 91, 98, 100, 105, 130, 140, 147, 150, 156, 175, 182, 195, 196, 210, 245, 260, 273, 294, 300, 325, 350, 364, 390, 409, 420, 455, 490, 525, 546, 588, 637, 650, 700, 735, 780, 818, 910, 975, 980, 1050, 1092, 1225, 1227, 1274, 1300, 1365, 1470, 1636, 1820, 1911, 1950, 2045, 2100, 2275, 2450, 2454, 2548, 2730, 2863, 2940, 3185, 3675, 3822, 3900, 4090, 4550, 4900, 4908, 5317, 5460, 5726, 6135, 6370, 6825, 7350, 7644, 8180, 8589, 9100, 9555, 10225, 10634, 11452, 12270, 12740, 13650, 14315, 14700, 15925, 15951, 17178, 19110, 20041, 20450, 21268, 24540, 26585, 27300, 28630, 30675, 31850, 31902, 34356, 37219, 38220, 40082, 40900, 42945, 47775, 53170, 57260, 60123, 61350, 63700, 63804, 71575, 74438, 79755, 80164, 85890, 95550, 100205, 106340, 111657, 120246, 122700, 132925, 143150, 148876, 159510, 171780, 186095, 191100, 200410, 214725, 223314, 240492, 260533, 265850, 286300, 300615, 319020, 372190, 398775, 400820, 429450, 446628, 501025, 521066, 531700, 558285, 601230, 744380, 781599, 797550, 858900, 930475, 1002050, 1042132, 1116570, 1202460, 1302665, 1503075, 1563198, 1595100, 1860950, 2004100, 2233140, 2605330, 2791425, 3006150, 3126396, 3721900, 3907995, 5210660, 5582850, 6012300, 6513325, 7815990, 11165700, 13026650, 15631980, 19539975, 26053300, 39079950, 78159900]

約数ペア:

[(1, 78159900), (2, 39079950), (3, 26053300), (4, 19539975), (5, 15631980), (6, 13026650), (7, 11165700), (10, 7815990), (12, 6513325), (13, 6012300), (14, 5582850), (15, 5210660), (20, 3907995), (21, 3721900), (25, 3126396), (26, 3006150), (28, 2791425), (30, 2605330), (35, 2233140), (39, 2004100), (42, 1860950), (49, 1595100), (50, 1563198), (52, 1503075), (60, 1302665), (65, 1202460), (70, 1116570), (75, 1042132), (78, 1002050), (84, 930475), (91, 858900), (98, 797550), (100, 781599), (105, 744380), (130, 601230), (140, 558285), (147, 531700), (150, 521066), (156, 501025), (175, 446628), (182, 429450), (195, 400820), (196, 398775), (210, 372190), (245, 319020), (260, 300615), (273, 286300), (294, 265850), (300, 260533), (325, 240492), (350, 223314), (364, 214725), (390, 200410), (409, 191100), (420, 186095), (455, 171780), (490, 159510), (525, 148876), (546, 143150), (588, 132925), (637, 122700), (650, 120246), (700, 111657), (735, 106340), (780, 100205), (818, 95550), (910, 85890), (975, 80164), (980, 79755), (1050, 74438), (1092, 71575), (1225, 63804), (1227, 63700), (1274, 61350), (1300, 60123), (1365, 57260), (1470, 53170), (1636, 47775), (1820, 42945), (1911, 40900), (1950, 40082), (2045, 38220), (2100, 37219), (2275, 34356), (2450, 31902), (2454, 31850), (2548, 30675), (2730, 28630), (2863, 27300), (2940, 26585), (3185, 24540), (3675, 21268), (3822, 20450), (3900, 20041), (4090, 19110), (4550, 17178), (4900, 15951), (4908, 15925), (5317, 14700), (5460, 14315), (5726, 13650), (6135, 12740), (6370, 12270), (6825, 11452), (7350, 10634), (7644, 10225), (8180, 9555), (8589, 9100)]