20019660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 39492660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 89, 92, 115, 138, 163, 178, 230, 267, 276, 326, 345, 356, 445, 460, 489, 534, 652, 690, 815, 890, 978, 1068, 1335, 1380, 1630, 1780, 1956, 2047, 2445, 2670, 3260, 3749, 4094, 4890, 5340, 6141, 7498, 8188, 9780, 10235, 11247, 12282, 14507, 14996, 18745, 20470, 22494, 24564, 29014, 30705, 37490, 40940, 43521, 44988, 56235, 58028, 61410, 72535, 74980, 87042, 112470, 122820, 145070, 174084, 217605, 224940, 290140, 333661, 435210, 667322, 870420, 1000983, 1334644, 1668305, 2001966, 3336610, 4003932, 5004915, 6673220, 10009830, 20019660]

約数ペア:

[(1, 20019660), (2, 10009830), (3, 6673220), (4, 5004915), (5, 4003932), (6, 3336610), (10, 2001966), (12, 1668305), (15, 1334644), (20, 1000983), (23, 870420), (30, 667322), (46, 435210), (60, 333661), (69, 290140), (89, 224940), (92, 217605), (115, 174084), (138, 145070), (163, 122820), (178, 112470), (230, 87042), (267, 74980), (276, 72535), (326, 61410), (345, 58028), (356, 56235), (445, 44988), (460, 43521), (489, 40940), (534, 37490), (652, 30705), (690, 29014), (815, 24564), (890, 22494), (978, 20470), (1068, 18745), (1335, 14996), (1380, 14507), (1630, 12282), (1780, 11247), (1956, 10235), (2047, 9780), (2445, 8188), (2670, 7498), (3260, 6141), (3749, 5340), (4094, 4890)]