121440020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 304980480

約数和(自身を除く): 183540460

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 61, 62, 65, 76, 95, 122, 124, 130, 155, 169, 190, 244, 247, 260, 305, 310, 338, 380, 403, 494, 589, 610, 620, 676, 793, 806, 845, 988, 1159, 1178, 1220, 1235, 1586, 1612, 1690, 1891, 2015, 2318, 2356, 2470, 2945, 3172, 3211, 3380, 3782, 3965, 4030, 4636, 4940, 5239, 5795, 5890, 6422, 7564, 7657, 7930, 8060, 9455, 10309, 10478, 11590, 11780, 12844, 15067, 15314, 15860, 16055, 18910, 20618, 20956, 23180, 24583, 26195, 30134, 30628, 32110, 35929, 37820, 38285, 41236, 49166, 51545, 52390, 60268, 64220, 71858, 75335, 76570, 98332, 99541, 103090, 104780, 122915, 143716, 150670, 153140, 179645, 195871, 199082, 206180, 245830, 301340, 319579, 359290, 391742, 398164, 467077, 491660, 497705, 639158, 718580, 783484, 934154, 979355, 995410, 1278316, 1597895, 1868308, 1958710, 1990820, 2335385, 3195790, 3917420, 4670770, 6072001, 6391580, 9341540, 12144002, 24288004, 30360005, 60720010, 121440020]

約数ペア:

[(1, 121440020), (2, 60720010), (4, 30360005), (5, 24288004), (10, 12144002), (13, 9341540), (19, 6391580), (20, 6072001), (26, 4670770), (31, 3917420), (38, 3195790), (52, 2335385), (61, 1990820), (62, 1958710), (65, 1868308), (76, 1597895), (95, 1278316), (122, 995410), (124, 979355), (130, 934154), (155, 783484), (169, 718580), (190, 639158), (244, 497705), (247, 491660), (260, 467077), (305, 398164), (310, 391742), (338, 359290), (380, 319579), (403, 301340), (494, 245830), (589, 206180), (610, 199082), (620, 195871), (676, 179645), (793, 153140), (806, 150670), (845, 143716), (988, 122915), (1159, 104780), (1178, 103090), (1220, 99541), (1235, 98332), (1586, 76570), (1612, 75335), (1690, 71858), (1891, 64220), (2015, 60268), (2318, 52390), (2356, 51545), (2470, 49166), (2945, 41236), (3172, 38285), (3211, 37820), (3380, 35929), (3782, 32110), (3965, 30628), (4030, 30134), (4636, 26195), (4940, 24583), (5239, 23180), (5795, 20956), (5890, 20618), (6422, 18910), (7564, 16055), (7657, 15860), (7930, 15314), (8060, 15067), (9455, 12844), (10309, 11780), (10478, 11590)]