209720520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4447}}^1$

素因数の和:4595

約数の個数: 96

約数和(自身を含む): 686949120

約数和(自身を除く): 477228600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 360, 393, 524, 655, 786, 1048, 1179, 1310, 1572, 1965, 2358, 2620, 3144, 3930, 4447, 4716, 5240, 5895, 7860, 8894, 9432, 11790, 13341, 15720, 17788, 22235, 23580, 26682, 35576, 40023, 44470, 47160, 53364, 66705, 80046, 88940, 106728, 133410, 160092, 177880, 200115, 266820, 320184, 400230, 533640, 582557, 800460, 1165114, 1600920, 1747671, 2330228, 2912785, 3495342, 4660456, 5243013, 5825570, 6990684, 8738355, 10486026, 11651140, 13981368, 17476710, 20972052, 23302280, 26215065, 34953420, 41944104, 52430130, 69906840, 104860260, 209720520]

約数ペア:

[(1, 209720520), (2, 104860260), (3, 69906840), (4, 52430130), (5, 41944104), (6, 34953420), (8, 26215065), (9, 23302280), (10, 20972052), (12, 17476710), (15, 13981368), (18, 11651140), (20, 10486026), (24, 8738355), (30, 6990684), (36, 5825570), (40, 5243013), (45, 4660456), (60, 3495342), (72, 2912785), (90, 2330228), (120, 1747671), (131, 1600920), (180, 1165114), (262, 800460), (360, 582557), (393, 533640), (524, 400230), (655, 320184), (786, 266820), (1048, 200115), (1179, 177880), (1310, 160092), (1572, 133410), (1965, 106728), (2358, 88940), (2620, 80046), (3144, 66705), (3930, 53364), (4447, 47160), (4716, 44470), (5240, 40023), (5895, 35576), (7860, 26682), (8894, 23580), (9432, 22235), (11790, 17788), (13341, 15720)]