18992880

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{977}}^1$

素因数の和:1005

約数の個数: 120

約数和(自身を含む): 66214512

約数和(自身を除く): 47221632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 977, 1080, 1215, 1296, 1620, 1944, 1954, 2160, 2430, 2931, 3240, 3888, 3908, 4860, 4885, 5862, 6480, 7816, 8793, 9720, 9770, 11724, 14655, 15632, 17586, 19440, 19540, 23448, 26379, 29310, 35172, 39080, 43965, 46896, 52758, 58620, 70344, 78160, 79137, 87930, 105516, 117240, 131895, 140688, 158274, 175860, 211032, 234480, 237411, 263790, 316548, 351720, 395685, 422064, 474822, 527580, 633096, 703440, 791370, 949644, 1055160, 1187055, 1266192, 1582740, 1899288, 2110320, 2374110, 3165480, 3798576, 4748220, 6330960, 9496440, 18992880]

約数ペア:

[(1, 18992880), (2, 9496440), (3, 6330960), (4, 4748220), (5, 3798576), (6, 3165480), (8, 2374110), (9, 2110320), (10, 1899288), (12, 1582740), (15, 1266192), (16, 1187055), (18, 1055160), (20, 949644), (24, 791370), (27, 703440), (30, 633096), (36, 527580), (40, 474822), (45, 422064), (48, 395685), (54, 351720), (60, 316548), (72, 263790), (80, 237411), (81, 234480), (90, 211032), (108, 175860), (120, 158274), (135, 140688), (144, 131895), (162, 117240), (180, 105516), (216, 87930), (240, 79137), (243, 78160), (270, 70344), (324, 58620), (360, 52758), (405, 46896), (432, 43965), (486, 39080), (540, 35172), (648, 29310), (720, 26379), (810, 23448), (972, 19540), (977, 19440), (1080, 17586), (1215, 15632), (1296, 14655), (1620, 11724), (1944, 9770), (1954, 9720), (2160, 8793), (2430, 7816), (2931, 6480), (3240, 5862), (3888, 4885), (3908, 4860)]