18793320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1755

約数の個数: 128

約数和(自身を含む): 69431040

約数和(自身を除く): 50637720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1721, 1820, 2184, 2730, 3442, 3640, 5163, 5460, 6884, 8605, 10326, 10920, 12047, 13768, 17210, 20652, 22373, 24094, 25815, 34420, 36141, 41304, 44746, 48188, 51630, 60235, 67119, 68840, 72282, 89492, 96376, 103260, 111865, 120470, 134238, 144564, 156611, 178984, 180705, 206520, 223730, 240940, 268476, 289128, 313222, 335595, 361410, 447460, 469833, 481880, 536952, 626444, 671190, 722820, 783055, 894920, 939666, 1252888, 1342380, 1445640, 1566110, 1879332, 2349165, 2684760, 3132220, 3758664, 4698330, 6264440, 9396660, 18793320]

約数ペア:

[(1, 18793320), (2, 9396660), (3, 6264440), (4, 4698330), (5, 3758664), (6, 3132220), (7, 2684760), (8, 2349165), (10, 1879332), (12, 1566110), (13, 1445640), (14, 1342380), (15, 1252888), (20, 939666), (21, 894920), (24, 783055), (26, 722820), (28, 671190), (30, 626444), (35, 536952), (39, 481880), (40, 469833), (42, 447460), (52, 361410), (56, 335595), (60, 313222), (65, 289128), (70, 268476), (78, 240940), (84, 223730), (91, 206520), (104, 180705), (105, 178984), (120, 156611), (130, 144564), (140, 134238), (156, 120470), (168, 111865), (182, 103260), (195, 96376), (210, 89492), (260, 72282), (273, 68840), (280, 67119), (312, 60235), (364, 51630), (390, 48188), (420, 44746), (455, 41304), (520, 36141), (546, 34420), (728, 25815), (780, 24094), (840, 22373), (910, 20652), (1092, 17210), (1365, 13768), (1560, 12047), (1721, 10920), (1820, 10326), (2184, 8605), (2730, 6884), (3442, 5460), (3640, 5163)]