121931680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 325807272

約数和(自身を除く): 203875592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 61, 62, 65, 80, 104, 122, 124, 130, 155, 160, 208, 244, 248, 260, 305, 310, 403, 416, 488, 496, 520, 610, 620, 793, 806, 961, 976, 992, 1040, 1220, 1240, 1586, 1612, 1891, 1922, 1952, 2015, 2080, 2440, 2480, 3172, 3224, 3782, 3844, 3965, 4030, 4805, 4880, 4960, 6344, 6448, 7564, 7688, 7930, 8060, 9455, 9610, 9760, 12493, 12688, 12896, 15128, 15376, 15860, 16120, 18910, 19220, 24583, 24986, 25376, 30256, 30752, 31720, 32240, 37820, 38440, 49166, 49972, 58621, 60512, 62465, 63440, 64480, 75640, 76880, 98332, 99944, 117242, 122915, 124930, 126880, 151280, 153760, 196664, 199888, 234484, 245830, 249860, 293105, 302560, 393328, 399776, 468968, 491660, 499720, 586210, 762073, 786656, 937936, 983320, 999440, 1172420, 1524146, 1875872, 1966640, 1998880, 2344840, 3048292, 3810365, 3933280, 4689680, 6096584, 7620730, 9379360, 12193168, 15241460, 24386336, 30482920, 60965840, 121931680]

約数ペア:

[(1, 121931680), (2, 60965840), (4, 30482920), (5, 24386336), (8, 15241460), (10, 12193168), (13, 9379360), (16, 7620730), (20, 6096584), (26, 4689680), (31, 3933280), (32, 3810365), (40, 3048292), (52, 2344840), (61, 1998880), (62, 1966640), (65, 1875872), (80, 1524146), (104, 1172420), (122, 999440), (124, 983320), (130, 937936), (155, 786656), (160, 762073), (208, 586210), (244, 499720), (248, 491660), (260, 468968), (305, 399776), (310, 393328), (403, 302560), (416, 293105), (488, 249860), (496, 245830), (520, 234484), (610, 199888), (620, 196664), (793, 153760), (806, 151280), (961, 126880), (976, 124930), (992, 122915), (1040, 117242), (1220, 99944), (1240, 98332), (1586, 76880), (1612, 75640), (1891, 64480), (1922, 63440), (1952, 62465), (2015, 60512), (2080, 58621), (2440, 49972), (2480, 49166), (3172, 38440), (3224, 37820), (3782, 32240), (3844, 31720), (3965, 30752), (4030, 30256), (4805, 25376), (4880, 24986), (4960, 24583), (6344, 19220), (6448, 18910), (7564, 16120), (7688, 15860), (7930, 15376), (8060, 15128), (9455, 12896), (9610, 12688), (9760, 12493)]