123478920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1511}}^1$

素因数の和:1755

約数の個数: 96

約数和(自身を含む): 403341120

約数和(自身を除く): 279862200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 227, 360, 454, 681, 908, 1135, 1362, 1511, 1816, 2043, 2270, 2724, 3022, 3405, 4086, 4533, 4540, 5448, 6044, 6810, 7555, 8172, 9066, 9080, 10215, 12088, 13599, 13620, 15110, 16344, 18132, 20430, 22665, 27198, 27240, 30220, 36264, 40860, 45330, 54396, 60440, 67995, 81720, 90660, 108792, 135990, 181320, 271980, 342997, 543960, 685994, 1028991, 1371988, 1714985, 2057982, 2743976, 3086973, 3429970, 4115964, 5144955, 6173946, 6859940, 8231928, 10289910, 12347892, 13719880, 15434865, 20579820, 24695784, 30869730, 41159640, 61739460, 123478920]

約数ペア:

[(1, 123478920), (2, 61739460), (3, 41159640), (4, 30869730), (5, 24695784), (6, 20579820), (8, 15434865), (9, 13719880), (10, 12347892), (12, 10289910), (15, 8231928), (18, 6859940), (20, 6173946), (24, 5144955), (30, 4115964), (36, 3429970), (40, 3086973), (45, 2743976), (60, 2057982), (72, 1714985), (90, 1371988), (120, 1028991), (180, 685994), (227, 543960), (360, 342997), (454, 271980), (681, 181320), (908, 135990), (1135, 108792), (1362, 90660), (1511, 81720), (1816, 67995), (2043, 60440), (2270, 54396), (2724, 45330), (3022, 40860), (3405, 36264), (4086, 30220), (4533, 27240), (4540, 27198), (5448, 22665), (6044, 20430), (6810, 18132), (7555, 16344), (8172, 15110), (9066, 13620), (9080, 13599), (10215, 12088)]