28985220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14639}}^1$

素因数の和:14665

約数の個数: 72

約数和(自身を含む): 95921280

約数和(自身を除く): 66936060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14639, 29278, 43917, 58556, 73195, 87834, 131751, 146390, 161029, 175668, 219585, 263502, 292780, 322058, 439170, 483087, 527004, 644116, 658755, 805145, 878340, 966174, 1317510, 1449261, 1610290, 1932348, 2415435, 2635020, 2898522, 3220580, 4830870, 5797044, 7246305, 9661740, 14492610, 28985220]

約数ペア:

[(1, 28985220), (2, 14492610), (3, 9661740), (4, 7246305), (5, 5797044), (6, 4830870), (9, 3220580), (10, 2898522), (11, 2635020), (12, 2415435), (15, 1932348), (18, 1610290), (20, 1449261), (22, 1317510), (30, 966174), (33, 878340), (36, 805145), (44, 658755), (45, 644116), (55, 527004), (60, 483087), (66, 439170), (90, 322058), (99, 292780), (110, 263502), (132, 219585), (165, 175668), (180, 161029), (198, 146390), (220, 131751), (330, 87834), (396, 73195), (495, 58556), (660, 43917), (990, 29278), (1980, 14639)]