19816560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1619}}^1$

素因数の和:1655

約数の個数: 120

約数和(自身を含む): 70508880

約数和(自身を除く): 50692320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 1619, 2040, 2448, 3060, 3238, 4080, 4857, 6120, 6476, 8095, 9714, 12240, 12952, 14571, 16190, 19428, 24285, 25904, 27523, 29142, 32380, 38856, 48570, 55046, 58284, 64760, 72855, 77712, 82569, 97140, 110092, 116568, 129520, 137615, 145710, 165138, 194280, 220184, 233136, 247707, 275230, 291420, 330276, 388560, 412845, 440368, 495414, 550460, 582840, 660552, 825690, 990828, 1100920, 1165680, 1238535, 1321104, 1651380, 1981656, 2201840, 2477070, 3302760, 3963312, 4954140, 6605520, 9908280, 19816560]

約数ペア:

[(1, 19816560), (2, 9908280), (3, 6605520), (4, 4954140), (5, 3963312), (6, 3302760), (8, 2477070), (9, 2201840), (10, 1981656), (12, 1651380), (15, 1321104), (16, 1238535), (17, 1165680), (18, 1100920), (20, 990828), (24, 825690), (30, 660552), (34, 582840), (36, 550460), (40, 495414), (45, 440368), (48, 412845), (51, 388560), (60, 330276), (68, 291420), (72, 275230), (80, 247707), (85, 233136), (90, 220184), (102, 194280), (120, 165138), (136, 145710), (144, 137615), (153, 129520), (170, 116568), (180, 110092), (204, 97140), (240, 82569), (255, 77712), (272, 72855), (306, 64760), (340, 58284), (360, 55046), (408, 48570), (510, 38856), (612, 32380), (680, 29142), (720, 27523), (765, 25904), (816, 24285), (1020, 19428), (1224, 16190), (1360, 14571), (1530, 12952), (1619, 12240), (2040, 9714), (2448, 8095), (3060, 6476), (3238, 6120), (4080, 4857)]