321468420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{647}}^1$

素因数の和:699

約数の個数: 216

約数和(自身を含む): 1135560384

約数和(自身を除く): 814091964

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 169, 182, 195, 196, 210, 245, 260, 273, 294, 338, 364, 390, 420, 455, 490, 507, 546, 588, 637, 647, 676, 735, 780, 845, 910, 980, 1014, 1092, 1183, 1274, 1294, 1365, 1470, 1690, 1820, 1911, 1941, 2028, 2366, 2535, 2548, 2588, 2730, 2940, 3185, 3235, 3380, 3549, 3822, 3882, 4529, 4732, 5070, 5460, 5915, 6370, 6470, 7098, 7644, 7764, 8281, 8411, 9058, 9555, 9705, 10140, 11830, 12740, 12940, 13587, 14196, 16562, 16822, 17745, 18116, 19110, 19410, 22645, 23660, 24843, 25233, 27174, 31703, 33124, 33644, 35490, 38220, 38820, 41405, 42055, 45290, 49686, 50466, 54348, 58877, 63406, 67935, 70980, 82810, 84110, 90580, 95109, 99372, 100932, 109343, 117754, 124215, 126165, 126812, 135870, 158515, 165620, 168220, 176631, 190218, 218686, 235508, 248430, 252330, 271740, 294385, 317030, 328029, 353262, 380436, 412139, 437372, 475545, 496860, 504660, 546715, 588770, 634060, 656058, 706524, 765401, 824278, 883155, 951090, 1093430, 1177540, 1236417, 1312116, 1530802, 1640145, 1648556, 1766310, 1902180, 2060695, 2186860, 2296203, 2472834, 3061604, 3280290, 3532620, 3827005, 4121390, 4592406, 4945668, 5357807, 6182085, 6560580, 7654010, 8242780, 9184812, 10715614, 11481015, 12364170, 15308020, 16073421, 21431228, 22962030, 24728340, 26789035, 32146842, 45924060, 53578070, 64293684, 80367105, 107156140, 160734210, 321468420]

約数ペア:

[(1, 321468420), (2, 160734210), (3, 107156140), (4, 80367105), (5, 64293684), (6, 53578070), (7, 45924060), (10, 32146842), (12, 26789035), (13, 24728340), (14, 22962030), (15, 21431228), (20, 16073421), (21, 15308020), (26, 12364170), (28, 11481015), (30, 10715614), (35, 9184812), (39, 8242780), (42, 7654010), (49, 6560580), (52, 6182085), (60, 5357807), (65, 4945668), (70, 4592406), (78, 4121390), (84, 3827005), (91, 3532620), (98, 3280290), (105, 3061604), (130, 2472834), (140, 2296203), (147, 2186860), (156, 2060695), (169, 1902180), (182, 1766310), (195, 1648556), (196, 1640145), (210, 1530802), (245, 1312116), (260, 1236417), (273, 1177540), (294, 1093430), (338, 951090), (364, 883155), (390, 824278), (420, 765401), (455, 706524), (490, 656058), (507, 634060), (546, 588770), (588, 546715), (637, 504660), (647, 496860), (676, 475545), (735, 437372), (780, 412139), (845, 380436), (910, 353262), (980, 328029), (1014, 317030), (1092, 294385), (1183, 271740), (1274, 252330), (1294, 248430), (1365, 235508), (1470, 218686), (1690, 190218), (1820, 176631), (1911, 168220), (1941, 165620), (2028, 158515), (2366, 135870), (2535, 126812), (2548, 126165), (2588, 124215), (2730, 117754), (2940, 109343), (3185, 100932), (3235, 99372), (3380, 95109), (3549, 90580), (3822, 84110), (3882, 82810), (4529, 70980), (4732, 67935), (5070, 63406), (5460, 58877), (5915, 54348), (6370, 50466), (6470, 49686), (7098, 45290), (7644, 42055), (7764, 41405), (8281, 38820), (8411, 38220), (9058, 35490), (9555, 33644), (9705, 33124), (10140, 31703), (11830, 27174), (12740, 25233), (12940, 24843), (13587, 23660), (14196, 22645), (16562, 19410), (16822, 19110), (17745, 18116)]