127871900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 326645760

約数和(自身を除く): 198773860

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 130, 155, 167, 190, 247, 260, 310, 325, 334, 380, 403, 475, 494, 589, 620, 650, 668, 775, 806, 835, 950, 988, 1178, 1235, 1300, 1550, 1612, 1670, 1900, 2015, 2171, 2356, 2470, 2945, 3100, 3173, 3340, 4030, 4175, 4342, 4940, 5177, 5890, 6175, 6346, 7657, 8060, 8350, 8684, 10075, 10354, 10855, 11780, 12350, 12692, 14725, 15314, 15865, 16700, 20150, 20708, 21710, 24700, 25885, 29450, 30628, 31730, 38285, 40300, 41249, 43420, 51770, 54275, 58900, 63460, 67301, 76570, 79325, 82498, 98363, 103540, 108550, 129425, 134602, 153140, 158650, 164996, 191425, 196726, 206245, 217100, 258850, 269204, 317300, 336505, 382850, 393452, 412490, 491815, 517700, 673010, 765700, 824980, 983630, 1031225, 1278719, 1346020, 1682525, 1967260, 2062450, 2459075, 2557438, 3365050, 4124900, 4918150, 5114876, 6393595, 6730100, 9836300, 12787190, 25574380, 31967975, 63935950, 127871900]

約数ペア:

[(1, 127871900), (2, 63935950), (4, 31967975), (5, 25574380), (10, 12787190), (13, 9836300), (19, 6730100), (20, 6393595), (25, 5114876), (26, 4918150), (31, 4124900), (38, 3365050), (50, 2557438), (52, 2459075), (62, 2062450), (65, 1967260), (76, 1682525), (95, 1346020), (100, 1278719), (124, 1031225), (130, 983630), (155, 824980), (167, 765700), (190, 673010), (247, 517700), (260, 491815), (310, 412490), (325, 393452), (334, 382850), (380, 336505), (403, 317300), (475, 269204), (494, 258850), (589, 217100), (620, 206245), (650, 196726), (668, 191425), (775, 164996), (806, 158650), (835, 153140), (950, 134602), (988, 129425), (1178, 108550), (1235, 103540), (1300, 98363), (1550, 82498), (1612, 79325), (1670, 76570), (1900, 67301), (2015, 63460), (2171, 58900), (2356, 54275), (2470, 51770), (2945, 43420), (3100, 41249), (3173, 40300), (3340, 38285), (4030, 31730), (4175, 30628), (4342, 29450), (4940, 25885), (5177, 24700), (5890, 21710), (6175, 20708), (6346, 20150), (7657, 16700), (8060, 15865), (8350, 15314), (8684, 14725), (10075, 12692), (10354, 12350), (10855, 11780)]