19898640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{953}}^1$

素因数の和:1001

約数の個数: 120

約数和(自身を含む): 69203160

約数和(自身を除く): 49304520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 953, 1044, 1160, 1305, 1392, 1740, 1906, 2088, 2320, 2610, 2859, 3480, 3812, 4176, 4765, 5220, 5718, 6960, 7624, 8577, 9530, 10440, 11436, 14295, 15248, 17154, 19060, 20880, 22872, 27637, 28590, 34308, 38120, 42885, 45744, 55274, 57180, 68616, 76240, 82911, 85770, 110548, 114360, 137232, 138185, 165822, 171540, 221096, 228720, 248733, 276370, 331644, 343080, 414555, 442192, 497466, 552740, 663288, 686160, 829110, 994932, 1105480, 1243665, 1326576, 1658220, 1989864, 2210960, 2487330, 3316440, 3979728, 4974660, 6632880, 9949320, 19898640]

約数ペア:

[(1, 19898640), (2, 9949320), (3, 6632880), (4, 4974660), (5, 3979728), (6, 3316440), (8, 2487330), (9, 2210960), (10, 1989864), (12, 1658220), (15, 1326576), (16, 1243665), (18, 1105480), (20, 994932), (24, 829110), (29, 686160), (30, 663288), (36, 552740), (40, 497466), (45, 442192), (48, 414555), (58, 343080), (60, 331644), (72, 276370), (80, 248733), (87, 228720), (90, 221096), (116, 171540), (120, 165822), (144, 138185), (145, 137232), (174, 114360), (180, 110548), (232, 85770), (240, 82911), (261, 76240), (290, 68616), (348, 57180), (360, 55274), (435, 45744), (464, 42885), (522, 38120), (580, 34308), (696, 28590), (720, 27637), (870, 22872), (953, 20880), (1044, 19060), (1160, 17154), (1305, 15248), (1392, 14295), (1740, 11436), (1906, 10440), (2088, 9530), (2320, 8577), (2610, 7624), (2859, 6960), (3480, 5718), (3812, 5220), (4176, 4765)]