20018520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3271}}^1$

素因数の和:3305

約数の個数: 96

約数和(自身を含む): 68908320

約数和(自身を除く): 48889800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3271, 6120, 6542, 9813, 13084, 16355, 19626, 26168, 29439, 32710, 39252, 49065, 55607, 58878, 65420, 78504, 98130, 111214, 117756, 130840, 147195, 166821, 196260, 222428, 235512, 278035, 294390, 333642, 392520, 444856, 500463, 556070, 588780, 667284, 834105, 1000926, 1112140, 1177560, 1334568, 1668210, 2001852, 2224280, 2502315, 3336420, 4003704, 5004630, 6672840, 10009260, 20018520]

約数ペア:

[(1, 20018520), (2, 10009260), (3, 6672840), (4, 5004630), (5, 4003704), (6, 3336420), (8, 2502315), (9, 2224280), (10, 2001852), (12, 1668210), (15, 1334568), (17, 1177560), (18, 1112140), (20, 1000926), (24, 834105), (30, 667284), (34, 588780), (36, 556070), (40, 500463), (45, 444856), (51, 392520), (60, 333642), (68, 294390), (72, 278035), (85, 235512), (90, 222428), (102, 196260), (120, 166821), (136, 147195), (153, 130840), (170, 117756), (180, 111214), (204, 98130), (255, 78504), (306, 65420), (340, 58878), (360, 55607), (408, 49065), (510, 39252), (612, 32710), (680, 29439), (765, 26168), (1020, 19626), (1224, 16355), (1530, 13084), (2040, 9813), (3060, 6542), (3271, 6120)]