18759720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1015

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 48424920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 971, 1288, 1380, 1610, 1932, 1942, 2415, 2760, 2913, 3220, 3864, 3884, 4830, 4855, 5826, 6440, 6797, 7768, 9660, 9710, 11652, 13594, 14565, 19320, 19420, 20391, 22333, 23304, 27188, 29130, 33985, 38840, 40782, 44666, 54376, 58260, 66999, 67970, 81564, 89332, 101955, 111665, 116520, 133998, 135940, 156331, 163128, 178664, 203910, 223330, 267996, 271880, 312662, 334995, 407820, 446660, 468993, 535992, 625324, 669990, 781655, 815640, 893320, 937986, 1250648, 1339980, 1563310, 1875972, 2344965, 2679960, 3126620, 3751944, 4689930, 6253240, 9379860, 18759720]

約数ペア:

[(1, 18759720), (2, 9379860), (3, 6253240), (4, 4689930), (5, 3751944), (6, 3126620), (7, 2679960), (8, 2344965), (10, 1875972), (12, 1563310), (14, 1339980), (15, 1250648), (20, 937986), (21, 893320), (23, 815640), (24, 781655), (28, 669990), (30, 625324), (35, 535992), (40, 468993), (42, 446660), (46, 407820), (56, 334995), (60, 312662), (69, 271880), (70, 267996), (84, 223330), (92, 203910), (105, 178664), (115, 163128), (120, 156331), (138, 135940), (140, 133998), (161, 116520), (168, 111665), (184, 101955), (210, 89332), (230, 81564), (276, 67970), (280, 66999), (322, 58260), (345, 54376), (420, 44666), (460, 40782), (483, 38840), (552, 33985), (644, 29130), (690, 27188), (805, 23304), (840, 22333), (920, 20391), (966, 19420), (971, 19320), (1288, 14565), (1380, 13594), (1610, 11652), (1932, 9710), (1942, 9660), (2415, 7768), (2760, 6797), (2913, 6440), (3220, 5826), (3864, 4855), (3884, 4830)]