19862820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:152

約数の個数: 144

約数和(自身を含む): 64454208

約数和(自身を除く): 44591388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 67, 81, 90, 108, 122, 134, 135, 162, 180, 183, 201, 243, 244, 268, 270, 305, 324, 335, 366, 402, 405, 486, 540, 549, 603, 610, 670, 732, 804, 810, 915, 972, 1005, 1098, 1206, 1215, 1220, 1340, 1620, 1647, 1809, 1830, 2010, 2196, 2412, 2430, 2745, 3015, 3294, 3618, 3660, 4020, 4087, 4860, 4941, 5427, 5490, 6030, 6588, 7236, 8174, 8235, 9045, 9882, 10854, 10980, 12060, 12261, 14823, 16281, 16348, 16470, 18090, 19764, 20435, 21708, 24522, 24705, 27135, 29646, 32562, 32940, 36180, 36783, 40870, 49044, 49410, 54270, 59292, 61305, 65124, 73566, 74115, 81405, 81740, 98820, 108540, 110349, 122610, 147132, 148230, 162810, 183915, 220698, 245220, 296460, 325620, 331047, 367830, 441396, 551745, 662094, 735660, 993141, 1103490, 1324188, 1655235, 1986282, 2206980, 3310470, 3972564, 4965705, 6620940, 9931410, 19862820]

約数ペア:

[(1, 19862820), (2, 9931410), (3, 6620940), (4, 4965705), (5, 3972564), (6, 3310470), (9, 2206980), (10, 1986282), (12, 1655235), (15, 1324188), (18, 1103490), (20, 993141), (27, 735660), (30, 662094), (36, 551745), (45, 441396), (54, 367830), (60, 331047), (61, 325620), (67, 296460), (81, 245220), (90, 220698), (108, 183915), (122, 162810), (134, 148230), (135, 147132), (162, 122610), (180, 110349), (183, 108540), (201, 98820), (243, 81740), (244, 81405), (268, 74115), (270, 73566), (305, 65124), (324, 61305), (335, 59292), (366, 54270), (402, 49410), (405, 49044), (486, 40870), (540, 36783), (549, 36180), (603, 32940), (610, 32562), (670, 29646), (732, 27135), (804, 24705), (810, 24522), (915, 21708), (972, 20435), (1005, 19764), (1098, 18090), (1206, 16470), (1215, 16348), (1220, 16281), (1340, 14823), (1620, 12261), (1647, 12060), (1809, 10980), (1830, 10854), (2010, 9882), (2196, 9045), (2412, 8235), (2430, 8174), (2745, 7236), (3015, 6588), (3294, 6030), (3618, 5490), (3660, 5427), (4020, 4941), (4087, 4860)]