18479880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:332

約数の個数: 128

約数和(自身を含む): 62726400

約数和(自身を除く): 44246520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 241, 270, 284, 355, 360, 426, 482, 540, 568, 639, 710, 723, 852, 964, 1065, 1080, 1205, 1278, 1420, 1446, 1704, 1917, 1928, 2130, 2169, 2410, 2556, 2840, 2892, 3195, 3615, 3834, 4260, 4338, 4820, 5112, 5784, 6390, 6507, 7230, 7668, 8520, 8676, 9585, 9640, 10845, 12780, 13014, 14460, 15336, 17111, 17352, 19170, 21690, 25560, 26028, 28920, 32535, 34222, 38340, 43380, 51333, 52056, 65070, 68444, 76680, 85555, 86760, 102666, 130140, 136888, 153999, 171110, 205332, 256665, 260280, 307998, 342220, 410664, 461997, 513330, 615996, 684440, 769995, 923994, 1026660, 1231992, 1539990, 1847988, 2053320, 2309985, 3079980, 3695976, 4619970, 6159960, 9239940, 18479880]

約数ペア:

[(1, 18479880), (2, 9239940), (3, 6159960), (4, 4619970), (5, 3695976), (6, 3079980), (8, 2309985), (9, 2053320), (10, 1847988), (12, 1539990), (15, 1231992), (18, 1026660), (20, 923994), (24, 769995), (27, 684440), (30, 615996), (36, 513330), (40, 461997), (45, 410664), (54, 342220), (60, 307998), (71, 260280), (72, 256665), (90, 205332), (108, 171110), (120, 153999), (135, 136888), (142, 130140), (180, 102666), (213, 86760), (216, 85555), (241, 76680), (270, 68444), (284, 65070), (355, 52056), (360, 51333), (426, 43380), (482, 38340), (540, 34222), (568, 32535), (639, 28920), (710, 26028), (723, 25560), (852, 21690), (964, 19170), (1065, 17352), (1080, 17111), (1205, 15336), (1278, 14460), (1420, 13014), (1446, 12780), (1704, 10845), (1917, 9640), (1928, 9585), (2130, 8676), (2169, 8520), (2410, 7668), (2556, 7230), (2840, 6507), (2892, 6390), (3195, 5784), (3615, 5112), (3834, 4820), (4260, 4338)]