19907520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:342

約数の個数: 112

約数和(自身を含む): 64190880

約数和(自身を除く): 44283360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 89, 96, 120, 160, 178, 192, 233, 240, 267, 320, 356, 445, 466, 480, 534, 699, 712, 890, 932, 960, 1068, 1165, 1335, 1398, 1424, 1780, 1864, 2136, 2330, 2670, 2796, 2848, 3495, 3560, 3728, 4272, 4660, 5340, 5592, 5696, 6990, 7120, 7456, 8544, 9320, 10680, 11184, 13980, 14240, 14912, 17088, 18640, 20737, 21360, 22368, 27960, 28480, 37280, 41474, 42720, 44736, 55920, 62211, 74560, 82948, 85440, 103685, 111840, 124422, 165896, 207370, 223680, 248844, 311055, 331792, 414740, 497688, 622110, 663584, 829480, 995376, 1244220, 1327168, 1658960, 1990752, 2488440, 3317920, 3981504, 4976880, 6635840, 9953760, 19907520]

約数ペア:

[(1, 19907520), (2, 9953760), (3, 6635840), (4, 4976880), (5, 3981504), (6, 3317920), (8, 2488440), (10, 1990752), (12, 1658960), (15, 1327168), (16, 1244220), (20, 995376), (24, 829480), (30, 663584), (32, 622110), (40, 497688), (48, 414740), (60, 331792), (64, 311055), (80, 248844), (89, 223680), (96, 207370), (120, 165896), (160, 124422), (178, 111840), (192, 103685), (233, 85440), (240, 82948), (267, 74560), (320, 62211), (356, 55920), (445, 44736), (466, 42720), (480, 41474), (534, 37280), (699, 28480), (712, 27960), (890, 22368), (932, 21360), (960, 20737), (1068, 18640), (1165, 17088), (1335, 14912), (1398, 14240), (1424, 13980), (1780, 11184), (1864, 10680), (2136, 9320), (2330, 8544), (2670, 7456), (2796, 7120), (2848, 6990), (3495, 5696), (3560, 5592), (3728, 5340), (4272, 4660)]