19912440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 65007360

約数和(自身を除く): 45094920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 227, 255, 258, 340, 344, 408, 430, 454, 510, 516, 645, 680, 681, 731, 860, 908, 1020, 1032, 1135, 1290, 1362, 1462, 1720, 1816, 2040, 2193, 2270, 2580, 2724, 2924, 3405, 3655, 3859, 4386, 4540, 5160, 5448, 5848, 6810, 7310, 7718, 8772, 9080, 9761, 10965, 11577, 13620, 14620, 15436, 17544, 19295, 19522, 21930, 23154, 27240, 29240, 29283, 30872, 38590, 39044, 43860, 46308, 48805, 57885, 58566, 77180, 78088, 87720, 92616, 97610, 115770, 117132, 146415, 154360, 165937, 195220, 231540, 234264, 292830, 331874, 390440, 463080, 497811, 585660, 663748, 829685, 995622, 1171320, 1327496, 1659370, 1991244, 2489055, 3318740, 3982488, 4978110, 6637480, 9956220, 19912440]

約数ペア:

[(1, 19912440), (2, 9956220), (3, 6637480), (4, 4978110), (5, 3982488), (6, 3318740), (8, 2489055), (10, 1991244), (12, 1659370), (15, 1327496), (17, 1171320), (20, 995622), (24, 829685), (30, 663748), (34, 585660), (40, 497811), (43, 463080), (51, 390440), (60, 331874), (68, 292830), (85, 234264), (86, 231540), (102, 195220), (120, 165937), (129, 154360), (136, 146415), (170, 117132), (172, 115770), (204, 97610), (215, 92616), (227, 87720), (255, 78088), (258, 77180), (340, 58566), (344, 57885), (408, 48805), (430, 46308), (454, 43860), (510, 39044), (516, 38590), (645, 30872), (680, 29283), (681, 29240), (731, 27240), (860, 23154), (908, 21930), (1020, 19522), (1032, 19295), (1135, 17544), (1290, 15436), (1362, 14620), (1462, 13620), (1720, 11577), (1816, 10965), (2040, 9761), (2193, 9080), (2270, 8772), (2580, 7718), (2724, 7310), (2924, 6810), (3405, 5848), (3655, 5448), (3859, 5160), (4386, 4540)]