51148760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 135475200

約数和(自身を除く): 84326440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 167, 190, 247, 248, 260, 310, 334, 380, 403, 494, 520, 589, 620, 668, 760, 806, 835, 988, 1178, 1235, 1240, 1336, 1612, 1670, 1976, 2015, 2171, 2356, 2470, 2945, 3173, 3224, 3340, 4030, 4342, 4712, 4940, 5177, 5890, 6346, 6680, 7657, 8060, 8684, 9880, 10354, 10855, 11780, 12692, 15314, 15865, 16120, 17368, 20708, 21710, 23560, 25384, 25885, 30628, 31730, 38285, 41249, 41416, 43420, 51770, 61256, 63460, 67301, 76570, 82498, 86840, 98363, 103540, 126920, 134602, 153140, 164996, 196726, 206245, 207080, 269204, 306280, 329992, 336505, 393452, 412490, 491815, 538408, 673010, 786904, 824980, 983630, 1278719, 1346020, 1649960, 1967260, 2557438, 2692040, 3934520, 5114876, 6393595, 10229752, 12787190, 25574380, 51148760]

約数ペア:

[(1, 51148760), (2, 25574380), (4, 12787190), (5, 10229752), (8, 6393595), (10, 5114876), (13, 3934520), (19, 2692040), (20, 2557438), (26, 1967260), (31, 1649960), (38, 1346020), (40, 1278719), (52, 983630), (62, 824980), (65, 786904), (76, 673010), (95, 538408), (104, 491815), (124, 412490), (130, 393452), (152, 336505), (155, 329992), (167, 306280), (190, 269204), (247, 207080), (248, 206245), (260, 196726), (310, 164996), (334, 153140), (380, 134602), (403, 126920), (494, 103540), (520, 98363), (589, 86840), (620, 82498), (668, 76570), (760, 67301), (806, 63460), (835, 61256), (988, 51770), (1178, 43420), (1235, 41416), (1240, 41249), (1336, 38285), (1612, 31730), (1670, 30628), (1976, 25885), (2015, 25384), (2171, 23560), (2356, 21710), (2470, 20708), (2945, 17368), (3173, 16120), (3224, 15865), (3340, 15314), (4030, 12692), (4342, 11780), (4712, 10855), (4940, 10354), (5177, 9880), (5890, 8684), (6346, 8060), (6680, 7657)]