1921748640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{81707}}^1$

素因数の和:81739

約数の個数: 144

約数和(自身を含む): 7041922272

約数和(自身を除く): 5120173632

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 23520, 81707, 163414, 245121, 326828, 408535, 490242, 571949, 653656, 817070, 980484, 1143898, 1225605, 1307312, 1634140, 1715847, 1960968, 2287796, 2451210, 2614624, 2859745, 3268280, 3431694, 3921936, 4003643, 4575592, 4902420, 5719490, 6536560, 6863388, 7843872, 8007286, 8579235, 9151184, 9804840, 11438980, 12010929, 13073120, 13726776, 16014572, 17158470, 18302368, 19609680, 20018215, 22877960, 24021858, 27453552, 32029144, 34316940, 39219360, 40036430, 45755920, 48043716, 54907104, 60054645, 64058288, 68633880, 80072860, 91511840, 96087432, 120109290, 128116576, 137267760, 160145720, 192174864, 240218580, 274535520, 320291440, 384349728, 480437160, 640582880, 960874320, 1921748640]

約数ペア:

[(1, 1921748640), (2, 960874320), (3, 640582880), (4, 480437160), (5, 384349728), (6, 320291440), (7, 274535520), (8, 240218580), (10, 192174864), (12, 160145720), (14, 137267760), (15, 128116576), (16, 120109290), (20, 96087432), (21, 91511840), (24, 80072860), (28, 68633880), (30, 64058288), (32, 60054645), (35, 54907104), (40, 48043716), (42, 45755920), (48, 40036430), (49, 39219360), (56, 34316940), (60, 32029144), (70, 27453552), (80, 24021858), (84, 22877960), (96, 20018215), (98, 19609680), (105, 18302368), (112, 17158470), (120, 16014572), (140, 13726776), (147, 13073120), (160, 12010929), (168, 11438980), (196, 9804840), (210, 9151184), (224, 8579235), (240, 8007286), (245, 7843872), (280, 6863388), (294, 6536560), (336, 5719490), (392, 4902420), (420, 4575592), (480, 4003643), (490, 3921936), (560, 3431694), (588, 3268280), (672, 2859745), (735, 2614624), (784, 2451210), (840, 2287796), (980, 1960968), (1120, 1715847), (1176, 1634140), (1470, 1307312), (1568, 1225605), (1680, 1143898), (1960, 980484), (2352, 817070), (2940, 653656), (3360, 571949), (3920, 490242), (4704, 408535), (5880, 326828), (7840, 245121), (11760, 163414), (23520, 81707)]