18993960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 128

約数和(自身を含む): 64944000

約数和(自身を除く): 45950040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 86, 90, 108, 120, 129, 135, 172, 180, 215, 216, 258, 270, 344, 360, 387, 409, 430, 516, 540, 645, 774, 818, 860, 1032, 1080, 1161, 1227, 1290, 1548, 1636, 1720, 1935, 2045, 2322, 2454, 2580, 3096, 3272, 3681, 3870, 4090, 4644, 4908, 5160, 5805, 6135, 7362, 7740, 8180, 9288, 9816, 11043, 11610, 12270, 14724, 15480, 16360, 17587, 18405, 22086, 23220, 24540, 29448, 35174, 36810, 44172, 46440, 49080, 52761, 55215, 70348, 73620, 87935, 88344, 105522, 110430, 140696, 147240, 158283, 175870, 211044, 220860, 263805, 316566, 351740, 422088, 441720, 474849, 527610, 633132, 703480, 791415, 949698, 1055220, 1266264, 1582830, 1899396, 2110440, 2374245, 3165660, 3798792, 4748490, 6331320, 9496980, 18993960]

約数ペア:

[(1, 18993960), (2, 9496980), (3, 6331320), (4, 4748490), (5, 3798792), (6, 3165660), (8, 2374245), (9, 2110440), (10, 1899396), (12, 1582830), (15, 1266264), (18, 1055220), (20, 949698), (24, 791415), (27, 703480), (30, 633132), (36, 527610), (40, 474849), (43, 441720), (45, 422088), (54, 351740), (60, 316566), (72, 263805), (86, 220860), (90, 211044), (108, 175870), (120, 158283), (129, 147240), (135, 140696), (172, 110430), (180, 105522), (215, 88344), (216, 87935), (258, 73620), (270, 70348), (344, 55215), (360, 52761), (387, 49080), (409, 46440), (430, 44172), (516, 36810), (540, 35174), (645, 29448), (774, 24540), (818, 23220), (860, 22086), (1032, 18405), (1080, 17587), (1161, 16360), (1227, 15480), (1290, 14724), (1548, 12270), (1636, 11610), (1720, 11043), (1935, 9816), (2045, 9288), (2322, 8180), (2454, 7740), (2580, 7362), (3096, 6135), (3272, 5805), (3681, 5160), (3870, 4908), (4090, 4644)]