19718640

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:221

約数の個数: 200

約数和(自身を含む): 72919440

約数和(自身を除く): 53200800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 179, 180, 204, 216, 240, 255, 270, 272, 306, 324, 340, 358, 360, 405, 408, 432, 459, 510, 537, 540, 612, 648, 680, 716, 720, 765, 810, 816, 895, 918, 1020, 1074, 1080, 1224, 1296, 1360, 1377, 1432, 1530, 1611, 1620, 1790, 1836, 2040, 2148, 2160, 2295, 2448, 2685, 2754, 2864, 3043, 3060, 3222, 3240, 3580, 3672, 4080, 4296, 4590, 4833, 5370, 5508, 6086, 6120, 6444, 6480, 6885, 7160, 7344, 8055, 8592, 9129, 9180, 9666, 10740, 11016, 12172, 12240, 12888, 13770, 14320, 14499, 15215, 16110, 18258, 18360, 19332, 21480, 22032, 24165, 24344, 25776, 27387, 27540, 28998, 30430, 32220, 36516, 36720, 38664, 42960, 45645, 48330, 48688, 54774, 55080, 57996, 60860, 64440, 72495, 73032, 77328, 82161, 91290, 96660, 109548, 110160, 115992, 121720, 128880, 136935, 144990, 146064, 164322, 182580, 193320, 219096, 231984, 243440, 246483, 273870, 289980, 328644, 365160, 386640, 410805, 438192, 492966, 547740, 579960, 657288, 730320, 821610, 985932, 1095480, 1159920, 1232415, 1314576, 1643220, 1971864, 2190960, 2464830, 3286440, 3943728, 4929660, 6572880, 9859320, 19718640]

約数ペア:

[(1, 19718640), (2, 9859320), (3, 6572880), (4, 4929660), (5, 3943728), (6, 3286440), (8, 2464830), (9, 2190960), (10, 1971864), (12, 1643220), (15, 1314576), (16, 1232415), (17, 1159920), (18, 1095480), (20, 985932), (24, 821610), (27, 730320), (30, 657288), (34, 579960), (36, 547740), (40, 492966), (45, 438192), (48, 410805), (51, 386640), (54, 365160), (60, 328644), (68, 289980), (72, 273870), (80, 246483), (81, 243440), (85, 231984), (90, 219096), (102, 193320), (108, 182580), (120, 164322), (135, 146064), (136, 144990), (144, 136935), (153, 128880), (162, 121720), (170, 115992), (179, 110160), (180, 109548), (204, 96660), (216, 91290), (240, 82161), (255, 77328), (270, 73032), (272, 72495), (306, 64440), (324, 60860), (340, 57996), (358, 55080), (360, 54774), (405, 48688), (408, 48330), (432, 45645), (459, 42960), (510, 38664), (537, 36720), (540, 36516), (612, 32220), (648, 30430), (680, 28998), (716, 27540), (720, 27387), (765, 25776), (810, 24344), (816, 24165), (895, 22032), (918, 21480), (1020, 19332), (1074, 18360), (1080, 18258), (1224, 16110), (1296, 15215), (1360, 14499), (1377, 14320), (1432, 13770), (1530, 12888), (1611, 12240), (1620, 12172), (1790, 11016), (1836, 10740), (2040, 9666), (2148, 9180), (2160, 9129), (2295, 8592), (2448, 8055), (2685, 7344), (2754, 7160), (2864, 6885), (3043, 6480), (3060, 6444), (3222, 6120), (3240, 6086), (3580, 5508), (3672, 5370), (4080, 4833), (4296, 4590)]