18477550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 43997184

約数和(自身を除く): 25519634

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 50, 62, 65, 70, 91, 130, 131, 155, 175, 182, 217, 262, 310, 325, 350, 403, 434, 455, 650, 655, 775, 806, 910, 917, 1085, 1310, 1550, 1703, 1834, 2015, 2170, 2275, 2821, 3275, 3406, 4030, 4061, 4550, 4585, 5425, 5642, 6550, 8122, 8515, 9170, 10075, 10850, 11921, 14105, 17030, 20150, 20305, 22925, 23842, 28210, 28427, 40610, 42575, 45850, 52793, 56854, 59605, 70525, 85150, 101525, 105586, 119210, 141050, 142135, 203050, 263965, 284270, 298025, 369551, 527930, 596050, 710675, 739102, 1319825, 1421350, 1847755, 2639650, 3695510, 9238775, 18477550]

約数ペア:

[(1, 18477550), (2, 9238775), (5, 3695510), (7, 2639650), (10, 1847755), (13, 1421350), (14, 1319825), (25, 739102), (26, 710675), (31, 596050), (35, 527930), (50, 369551), (62, 298025), (65, 284270), (70, 263965), (91, 203050), (130, 142135), (131, 141050), (155, 119210), (175, 105586), (182, 101525), (217, 85150), (262, 70525), (310, 59605), (325, 56854), (350, 52793), (403, 45850), (434, 42575), (455, 40610), (650, 28427), (655, 28210), (775, 23842), (806, 22925), (910, 20305), (917, 20150), (1085, 17030), (1310, 14105), (1550, 11921), (1703, 10850), (1834, 10075), (2015, 9170), (2170, 8515), (2275, 8122), (2821, 6550), (3275, 5642), (3406, 5425), (4030, 4585), (4061, 4550)]