647950940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{673}}^1$

素因数の和:748

約数の個数: 144

約数和(自身を含む): 1753284288

約数和(自身を除く): 1105333348

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 529, 598, 644, 673, 805, 910, 1058, 1196, 1346, 1495, 1610, 1820, 2093, 2116, 2645, 2692, 2990, 3220, 3365, 3703, 4186, 4711, 5290, 5980, 6730, 6877, 7406, 8372, 8749, 9422, 10465, 10580, 13460, 13754, 14812, 15479, 17498, 18515, 18844, 20930, 23555, 27508, 30958, 34385, 34996, 37030, 41860, 43745, 47110, 48139, 61243, 61916, 68770, 74060, 77395, 87490, 94220, 96278, 108353, 122486, 137540, 154790, 174980, 192556, 201227, 216706, 240695, 244972, 306215, 309580, 356017, 402454, 433412, 481390, 541765, 612430, 712034, 804908, 962780, 1006135, 1083530, 1224860, 1408589, 1424068, 1780085, 2012270, 2167060, 2492119, 2817178, 3560170, 4024540, 4628221, 4984238, 5634356, 7042945, 7120340, 9256442, 9968476, 12460595, 14085890, 18512884, 23141105, 24921190, 28171780, 32397547, 46282210, 49842380, 64795094, 92564420, 129590188, 161987735, 323975470, 647950940]

約数ペア:

[(1, 647950940), (2, 323975470), (4, 161987735), (5, 129590188), (7, 92564420), (10, 64795094), (13, 49842380), (14, 46282210), (20, 32397547), (23, 28171780), (26, 24921190), (28, 23141105), (35, 18512884), (46, 14085890), (52, 12460595), (65, 9968476), (70, 9256442), (91, 7120340), (92, 7042945), (115, 5634356), (130, 4984238), (140, 4628221), (161, 4024540), (182, 3560170), (230, 2817178), (260, 2492119), (299, 2167060), (322, 2012270), (364, 1780085), (455, 1424068), (460, 1408589), (529, 1224860), (598, 1083530), (644, 1006135), (673, 962780), (805, 804908), (910, 712034), (1058, 612430), (1196, 541765), (1346, 481390), (1495, 433412), (1610, 402454), (1820, 356017), (2093, 309580), (2116, 306215), (2645, 244972), (2692, 240695), (2990, 216706), (3220, 201227), (3365, 192556), (3703, 174980), (4186, 154790), (4711, 137540), (5290, 122486), (5980, 108353), (6730, 96278), (6877, 94220), (7406, 87490), (8372, 77395), (8749, 74060), (9422, 68770), (10465, 61916), (10580, 61243), (13460, 48139), (13754, 47110), (14812, 43745), (15479, 41860), (17498, 37030), (18515, 34996), (18844, 34385), (20930, 30958), (23555, 27508)]