2781439164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{769}}^1$

素因数の和:1280

約数の個数: 144

約数和(自身を含む): 8323194880

約数和(自身を除く): 5541755716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 463, 558, 651, 769, 868, 926, 1116, 1302, 1389, 1538, 1852, 1953, 2307, 2604, 2778, 3076, 3241, 3906, 4167, 4614, 5383, 5556, 6482, 6921, 7812, 8334, 9228, 9723, 10766, 12964, 13842, 14353, 16149, 16668, 19446, 21532, 23839, 27684, 28706, 29169, 32298, 38892, 43059, 47678, 48447, 57412, 58338, 64596, 71517, 86118, 95356, 96894, 100471, 116676, 129177, 143034, 166873, 172236, 193788, 200942, 214551, 258354, 286068, 301413, 333746, 356047, 401884, 429102, 500619, 516708, 602826, 667492, 712094, 858204, 904239, 1001238, 1068141, 1205652, 1424188, 1501857, 1808478, 2002476, 2136282, 2492329, 3003714, 3204423, 3616956, 4272564, 4984658, 6007428, 6408846, 7476987, 9969316, 11037457, 12817692, 14953974, 22074914, 22430961, 29907948, 33112371, 44149828, 44861922, 66224742, 77262199, 89723844, 99337113, 132449484, 154524398, 198674226, 231786597, 309048796, 397348452, 463573194, 695359791, 927146388, 1390719582, 2781439164]

約数ペア:

[(1, 2781439164), (2, 1390719582), (3, 927146388), (4, 695359791), (6, 463573194), (7, 397348452), (9, 309048796), (12, 231786597), (14, 198674226), (18, 154524398), (21, 132449484), (28, 99337113), (31, 89723844), (36, 77262199), (42, 66224742), (62, 44861922), (63, 44149828), (84, 33112371), (93, 29907948), (124, 22430961), (126, 22074914), (186, 14953974), (217, 12817692), (252, 11037457), (279, 9969316), (372, 7476987), (434, 6408846), (463, 6007428), (558, 4984658), (651, 4272564), (769, 3616956), (868, 3204423), (926, 3003714), (1116, 2492329), (1302, 2136282), (1389, 2002476), (1538, 1808478), (1852, 1501857), (1953, 1424188), (2307, 1205652), (2604, 1068141), (2778, 1001238), (3076, 904239), (3241, 858204), (3906, 712094), (4167, 667492), (4614, 602826), (5383, 516708), (5556, 500619), (6482, 429102), (6921, 401884), (7812, 356047), (8334, 333746), (9228, 301413), (9723, 286068), (10766, 258354), (12964, 214551), (13842, 200942), (14353, 193788), (16149, 172236), (16668, 166873), (19446, 143034), (21532, 129177), (23839, 116676), (27684, 100471), (28706, 96894), (29169, 95356), (32298, 86118), (38892, 71517), (43059, 64596), (47678, 58338), (48447, 57412)]