19900860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{967}}^1$

素因数の和:1000

約数の個数: 96

約数和(自身を含む): 65049600

約数和(自身を除く): 45148740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 967, 980, 1029, 1372, 1470, 1715, 1934, 2058, 2901, 2940, 3430, 3868, 4116, 4835, 5145, 5802, 6769, 6860, 9670, 10290, 11604, 13538, 14505, 19340, 20307, 20580, 27076, 29010, 33845, 40614, 47383, 58020, 67690, 81228, 94766, 101535, 135380, 142149, 189532, 203070, 236915, 284298, 331681, 406140, 473830, 568596, 663362, 710745, 947660, 995043, 1326724, 1421490, 1658405, 1990086, 2842980, 3316810, 3980172, 4975215, 6633620, 9950430, 19900860]

約数ペア:

[(1, 19900860), (2, 9950430), (3, 6633620), (4, 4975215), (5, 3980172), (6, 3316810), (7, 2842980), (10, 1990086), (12, 1658405), (14, 1421490), (15, 1326724), (20, 995043), (21, 947660), (28, 710745), (30, 663362), (35, 568596), (42, 473830), (49, 406140), (60, 331681), (70, 284298), (84, 236915), (98, 203070), (105, 189532), (140, 142149), (147, 135380), (196, 101535), (210, 94766), (245, 81228), (294, 67690), (343, 58020), (420, 47383), (490, 40614), (588, 33845), (686, 29010), (735, 27076), (967, 20580), (980, 20307), (1029, 19340), (1372, 14505), (1470, 13538), (1715, 11604), (1934, 10290), (2058, 9670), (2901, 6860), (2940, 6769), (3430, 5802), (3868, 5145), (4116, 4835)]