18810120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{457}}^1$

素因数の和:492

約数の個数: 128

約数和(自身を含む): 65952000

約数和(自身を除く): 47141880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 457, 490, 588, 686, 735, 840, 914, 980, 1029, 1176, 1371, 1372, 1470, 1715, 1828, 1960, 2058, 2285, 2742, 2744, 2940, 3199, 3430, 3656, 4116, 4570, 5145, 5484, 5880, 6398, 6855, 6860, 8232, 9140, 9597, 10290, 10968, 12796, 13710, 13720, 15995, 18280, 19194, 20580, 22393, 25592, 27420, 31990, 38388, 41160, 44786, 47985, 54840, 63980, 67179, 76776, 89572, 95970, 111965, 127960, 134358, 156751, 179144, 191940, 223930, 268716, 313502, 335895, 383880, 447860, 470253, 537432, 627004, 671790, 783755, 895720, 940506, 1254008, 1343580, 1567510, 1881012, 2351265, 2687160, 3135020, 3762024, 4702530, 6270040, 9405060, 18810120]

約数ペア:

[(1, 18810120), (2, 9405060), (3, 6270040), (4, 4702530), (5, 3762024), (6, 3135020), (7, 2687160), (8, 2351265), (10, 1881012), (12, 1567510), (14, 1343580), (15, 1254008), (20, 940506), (21, 895720), (24, 783755), (28, 671790), (30, 627004), (35, 537432), (40, 470253), (42, 447860), (49, 383880), (56, 335895), (60, 313502), (70, 268716), (84, 223930), (98, 191940), (105, 179144), (120, 156751), (140, 134358), (147, 127960), (168, 111965), (196, 95970), (210, 89572), (245, 76776), (280, 67179), (294, 63980), (343, 54840), (392, 47985), (420, 44786), (457, 41160), (490, 38388), (588, 31990), (686, 27420), (735, 25592), (840, 22393), (914, 20580), (980, 19194), (1029, 18280), (1176, 15995), (1371, 13720), (1372, 13710), (1470, 12796), (1715, 10968), (1828, 10290), (1960, 9597), (2058, 9140), (2285, 8232), (2742, 6860), (2744, 6855), (2940, 6398), (3199, 5880), (3430, 5484), (3656, 5145), (4116, 4570)]