19596920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 55987200

約数和(自身を除く): 36390280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 179, 184, 230, 238, 280, 322, 340, 358, 391, 460, 476, 595, 644, 680, 716, 782, 805, 895, 920, 952, 1190, 1253, 1288, 1432, 1564, 1610, 1790, 1955, 2380, 2506, 2737, 3043, 3128, 3220, 3580, 3910, 4117, 4760, 5012, 5474, 6086, 6265, 6440, 7160, 7820, 8234, 10024, 10948, 12172, 12530, 13685, 15215, 15640, 16468, 20585, 21301, 21896, 24344, 25060, 27370, 28819, 30430, 32936, 41170, 42602, 50120, 54740, 57638, 60860, 69989, 82340, 85204, 106505, 109480, 115276, 121720, 139978, 144095, 164680, 170408, 213010, 230552, 279956, 288190, 349945, 426020, 489923, 559912, 576380, 699890, 852040, 979846, 1152760, 1399780, 1959692, 2449615, 2799560, 3919384, 4899230, 9798460, 19596920]

約数ペア:

[(1, 19596920), (2, 9798460), (4, 4899230), (5, 3919384), (7, 2799560), (8, 2449615), (10, 1959692), (14, 1399780), (17, 1152760), (20, 979846), (23, 852040), (28, 699890), (34, 576380), (35, 559912), (40, 489923), (46, 426020), (56, 349945), (68, 288190), (70, 279956), (85, 230552), (92, 213010), (115, 170408), (119, 164680), (136, 144095), (140, 139978), (161, 121720), (170, 115276), (179, 109480), (184, 106505), (230, 85204), (238, 82340), (280, 69989), (322, 60860), (340, 57638), (358, 54740), (391, 50120), (460, 42602), (476, 41170), (595, 32936), (644, 30430), (680, 28819), (716, 27370), (782, 25060), (805, 24344), (895, 21896), (920, 21301), (952, 20585), (1190, 16468), (1253, 15640), (1288, 15215), (1432, 13685), (1564, 12530), (1610, 12172), (1790, 10948), (1955, 10024), (2380, 8234), (2506, 7820), (2737, 7160), (3043, 6440), (3128, 6265), (3220, 6086), (3580, 5474), (3910, 5012), (4117, 4760)]