19240020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1201}}^1$

素因数の和:1305

約数の個数: 72

約数和(自身を含む): 59066280

約数和(自身を除く): 39826260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1201, 1335, 1602, 1780, 2402, 2670, 3204, 3603, 4005, 4804, 5340, 6005, 7206, 8010, 10809, 12010, 14412, 16020, 18015, 21618, 24020, 36030, 43236, 54045, 72060, 106889, 108090, 213778, 216180, 320667, 427556, 534445, 641334, 962001, 1068890, 1282668, 1603335, 1924002, 2137780, 3206670, 3848004, 4810005, 6413340, 9620010, 19240020]

約数ペア:

[(1, 19240020), (2, 9620010), (3, 6413340), (4, 4810005), (5, 3848004), (6, 3206670), (9, 2137780), (10, 1924002), (12, 1603335), (15, 1282668), (18, 1068890), (20, 962001), (30, 641334), (36, 534445), (45, 427556), (60, 320667), (89, 216180), (90, 213778), (178, 108090), (180, 106889), (267, 72060), (356, 54045), (445, 43236), (534, 36030), (801, 24020), (890, 21618), (1068, 18015), (1201, 16020), (1335, 14412), (1602, 12010), (1780, 10809), (2402, 8010), (2670, 7206), (3204, 6005), (3603, 5340), (4005, 4804)]