20412900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:670

約数の個数: 108

約数和(自身を含む): 65819572

約数和(自身を除く): 45406672

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 37, 45, 50, 60, 74, 75, 90, 100, 111, 148, 150, 180, 185, 222, 225, 300, 333, 370, 444, 450, 555, 613, 666, 740, 900, 925, 1110, 1226, 1332, 1665, 1839, 1850, 2220, 2452, 2775, 3065, 3330, 3678, 3700, 5517, 5550, 6130, 6660, 7356, 8325, 9195, 11034, 11100, 12260, 15325, 16650, 18390, 22068, 22681, 27585, 30650, 33300, 36780, 45362, 45975, 55170, 61300, 68043, 90724, 91950, 110340, 113405, 136086, 137925, 183900, 204129, 226810, 272172, 275850, 340215, 408258, 453620, 551700, 567025, 680430, 816516, 1020645, 1134050, 1360860, 1701075, 2041290, 2268100, 3402150, 4082580, 5103225, 6804300, 10206450, 20412900]

約数ペア:

[(1, 20412900), (2, 10206450), (3, 6804300), (4, 5103225), (5, 4082580), (6, 3402150), (9, 2268100), (10, 2041290), (12, 1701075), (15, 1360860), (18, 1134050), (20, 1020645), (25, 816516), (30, 680430), (36, 567025), (37, 551700), (45, 453620), (50, 408258), (60, 340215), (74, 275850), (75, 272172), (90, 226810), (100, 204129), (111, 183900), (148, 137925), (150, 136086), (180, 113405), (185, 110340), (222, 91950), (225, 90724), (300, 68043), (333, 61300), (370, 55170), (444, 45975), (450, 45362), (555, 36780), (613, 33300), (666, 30650), (740, 27585), (900, 22681), (925, 22068), (1110, 18390), (1226, 16650), (1332, 15325), (1665, 12260), (1839, 11100), (1850, 11034), (2220, 9195), (2452, 8325), (2775, 7356), (3065, 6660), (3330, 6130), (3678, 5550), (3700, 5517)]