19746180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 46297980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 239, 243, 255, 270, 306, 324, 340, 405, 459, 478, 486, 510, 540, 612, 717, 765, 810, 918, 956, 972, 1020, 1195, 1215, 1377, 1434, 1530, 1620, 1836, 2151, 2295, 2390, 2430, 2754, 2868, 3060, 3585, 4063, 4131, 4302, 4590, 4780, 4860, 5508, 6453, 6885, 7170, 8126, 8262, 8604, 9180, 10755, 12189, 12906, 13770, 14340, 16252, 16524, 19359, 20315, 20655, 21510, 24378, 25812, 27540, 32265, 36567, 38718, 40630, 41310, 43020, 48756, 58077, 60945, 64530, 73134, 77436, 81260, 82620, 96795, 109701, 116154, 121890, 129060, 146268, 182835, 193590, 219402, 232308, 243780, 290385, 329103, 365670, 387180, 438804, 548505, 580770, 658206, 731340, 987309, 1097010, 1161540, 1316412, 1645515, 1974618, 2194020, 3291030, 3949236, 4936545, 6582060, 9873090, 19746180]

約数ペア:

[(1, 19746180), (2, 9873090), (3, 6582060), (4, 4936545), (5, 3949236), (6, 3291030), (9, 2194020), (10, 1974618), (12, 1645515), (15, 1316412), (17, 1161540), (18, 1097010), (20, 987309), (27, 731340), (30, 658206), (34, 580770), (36, 548505), (45, 438804), (51, 387180), (54, 365670), (60, 329103), (68, 290385), (81, 243780), (85, 232308), (90, 219402), (102, 193590), (108, 182835), (135, 146268), (153, 129060), (162, 121890), (170, 116154), (180, 109701), (204, 96795), (239, 82620), (243, 81260), (255, 77436), (270, 73134), (306, 64530), (324, 60945), (340, 58077), (405, 48756), (459, 43020), (478, 41310), (486, 40630), (510, 38718), (540, 36567), (612, 32265), (717, 27540), (765, 25812), (810, 24378), (918, 21510), (956, 20655), (972, 20315), (1020, 19359), (1195, 16524), (1215, 16252), (1377, 14340), (1434, 13770), (1530, 12906), (1620, 12189), (1836, 10755), (2151, 9180), (2295, 8604), (2390, 8262), (2430, 8126), (2754, 7170), (2868, 6885), (3060, 6453), (3585, 5508), (4063, 4860), (4131, 4780), (4302, 4590)]