381567900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 216

約数和(自身を含む): 1302010416

約数和(自身を除く): 920442516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 101, 105, 140, 147, 150, 175, 196, 202, 210, 245, 257, 294, 300, 303, 350, 404, 420, 490, 505, 514, 525, 588, 606, 700, 707, 735, 771, 980, 1010, 1028, 1050, 1212, 1225, 1285, 1414, 1470, 1515, 1542, 1799, 2020, 2100, 2121, 2450, 2525, 2570, 2828, 2940, 3030, 3084, 3535, 3598, 3675, 3855, 4242, 4900, 4949, 5050, 5140, 5397, 6060, 6425, 7070, 7196, 7350, 7575, 7710, 8484, 8995, 9898, 10100, 10605, 10794, 12593, 12850, 14140, 14700, 14847, 15150, 15420, 17675, 17990, 19275, 19796, 21210, 21588, 24745, 25186, 25700, 25957, 26985, 29694, 30300, 35350, 35980, 37779, 38550, 42420, 44975, 49490, 50372, 51914, 53025, 53970, 59388, 62965, 70700, 74235, 75558, 77100, 77871, 89950, 98980, 103828, 106050, 107940, 123725, 125930, 129785, 134925, 148470, 151116, 155742, 179900, 181699, 188895, 212100, 247450, 251860, 259570, 269850, 296940, 311484, 314825, 363398, 371175, 377790, 389355, 494900, 519140, 539700, 545097, 629650, 648925, 726796, 742350, 755580, 778710, 908495, 944475, 1090194, 1259300, 1271893, 1297850, 1484700, 1557420, 1816990, 1888950, 1946775, 2180388, 2543786, 2595700, 2725485, 3633980, 3777900, 3815679, 3893550, 4542475, 5087572, 5450970, 6359465, 7631358, 7787100, 9084950, 10901940, 12718930, 13627425, 15262716, 18169900, 19078395, 25437860, 27254850, 31797325, 38156790, 54509700, 63594650, 76313580, 95391975, 127189300, 190783950, 381567900]

約数ペア:

[(1, 381567900), (2, 190783950), (3, 127189300), (4, 95391975), (5, 76313580), (6, 63594650), (7, 54509700), (10, 38156790), (12, 31797325), (14, 27254850), (15, 25437860), (20, 19078395), (21, 18169900), (25, 15262716), (28, 13627425), (30, 12718930), (35, 10901940), (42, 9084950), (49, 7787100), (50, 7631358), (60, 6359465), (70, 5450970), (75, 5087572), (84, 4542475), (98, 3893550), (100, 3815679), (101, 3777900), (105, 3633980), (140, 2725485), (147, 2595700), (150, 2543786), (175, 2180388), (196, 1946775), (202, 1888950), (210, 1816990), (245, 1557420), (257, 1484700), (294, 1297850), (300, 1271893), (303, 1259300), (350, 1090194), (404, 944475), (420, 908495), (490, 778710), (505, 755580), (514, 742350), (525, 726796), (588, 648925), (606, 629650), (700, 545097), (707, 539700), (735, 519140), (771, 494900), (980, 389355), (1010, 377790), (1028, 371175), (1050, 363398), (1212, 314825), (1225, 311484), (1285, 296940), (1414, 269850), (1470, 259570), (1515, 251860), (1542, 247450), (1799, 212100), (2020, 188895), (2100, 181699), (2121, 179900), (2450, 155742), (2525, 151116), (2570, 148470), (2828, 134925), (2940, 129785), (3030, 125930), (3084, 123725), (3535, 107940), (3598, 106050), (3675, 103828), (3855, 98980), (4242, 89950), (4900, 77871), (4949, 77100), (5050, 75558), (5140, 74235), (5397, 70700), (6060, 62965), (6425, 59388), (7070, 53970), (7196, 53025), (7350, 51914), (7575, 50372), (7710, 49490), (8484, 44975), (8995, 42420), (9898, 38550), (10100, 37779), (10605, 35980), (10794, 35350), (12593, 30300), (12850, 29694), (14140, 26985), (14700, 25957), (14847, 25700), (15150, 25186), (15420, 24745), (17675, 21588), (17990, 21210), (19275, 19796)]