391426980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 192

約数和(自身を含む): 1330667520

約数和(自身を除く): 939240540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 181, 190, 210, 228, 266, 271, 285, 362, 380, 399, 420, 532, 542, 543, 570, 665, 724, 798, 813, 905, 1084, 1086, 1140, 1267, 1330, 1355, 1596, 1626, 1810, 1897, 1995, 2172, 2534, 2660, 2710, 2715, 3252, 3439, 3620, 3794, 3801, 3990, 4065, 5068, 5149, 5420, 5430, 5691, 6335, 6878, 7588, 7602, 7980, 8130, 9485, 10298, 10317, 10860, 11382, 12670, 13756, 15204, 15447, 16260, 17195, 18970, 19005, 20596, 20634, 22764, 24073, 25340, 25745, 28455, 30894, 34390, 36043, 37940, 38010, 41268, 48146, 49051, 51490, 51585, 56910, 61788, 68780, 72086, 72219, 76020, 77235, 96292, 98102, 102980, 103170, 108129, 113820, 120365, 144172, 144438, 147153, 154470, 180215, 196204, 206340, 216258, 240730, 245255, 288876, 294306, 308940, 343357, 360430, 361095, 432516, 481460, 490510, 540645, 588612, 686714, 720860, 722190, 735765, 931969, 981020, 1030071, 1081290, 1373428, 1444380, 1471530, 1716785, 1863938, 2060142, 2162580, 2795907, 2943060, 3433570, 3727876, 4120284, 4659845, 5150355, 5591814, 6523783, 6867140, 9319690, 10300710, 11183628, 13047566, 13979535, 18639380, 19571349, 20601420, 26095132, 27959070, 32618915, 39142698, 55918140, 65237830, 78285396, 97856745, 130475660, 195713490, 391426980]

約数ペア:

[(1, 391426980), (2, 195713490), (3, 130475660), (4, 97856745), (5, 78285396), (6, 65237830), (7, 55918140), (10, 39142698), (12, 32618915), (14, 27959070), (15, 26095132), (19, 20601420), (20, 19571349), (21, 18639380), (28, 13979535), (30, 13047566), (35, 11183628), (38, 10300710), (42, 9319690), (57, 6867140), (60, 6523783), (70, 5591814), (76, 5150355), (84, 4659845), (95, 4120284), (105, 3727876), (114, 3433570), (133, 2943060), (140, 2795907), (181, 2162580), (190, 2060142), (210, 1863938), (228, 1716785), (266, 1471530), (271, 1444380), (285, 1373428), (362, 1081290), (380, 1030071), (399, 981020), (420, 931969), (532, 735765), (542, 722190), (543, 720860), (570, 686714), (665, 588612), (724, 540645), (798, 490510), (813, 481460), (905, 432516), (1084, 361095), (1086, 360430), (1140, 343357), (1267, 308940), (1330, 294306), (1355, 288876), (1596, 245255), (1626, 240730), (1810, 216258), (1897, 206340), (1995, 196204), (2172, 180215), (2534, 154470), (2660, 147153), (2710, 144438), (2715, 144172), (3252, 120365), (3439, 113820), (3620, 108129), (3794, 103170), (3801, 102980), (3990, 98102), (4065, 96292), (5068, 77235), (5149, 76020), (5420, 72219), (5430, 72086), (5691, 68780), (6335, 61788), (6878, 56910), (7588, 51585), (7602, 51490), (7980, 49051), (8130, 48146), (9485, 41268), (10298, 38010), (10317, 37940), (10860, 36043), (11382, 34390), (12670, 30894), (13756, 28455), (15204, 25745), (15447, 25340), (16260, 24073), (17195, 22764), (18970, 20634), (19005, 20596)]