400532860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:396

約数の個数: 144

約数和(自身を含む): 1065808800

約数和(自身を除く): 665275940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 149, 182, 196, 211, 245, 260, 298, 364, 422, 455, 490, 596, 637, 745, 844, 910, 980, 1043, 1055, 1274, 1477, 1490, 1820, 1937, 2086, 2110, 2548, 2743, 2954, 2980, 3185, 3874, 4172, 4220, 5215, 5486, 5908, 6370, 7301, 7385, 7748, 9685, 10339, 10430, 10972, 12740, 13559, 13715, 14602, 14770, 19201, 19370, 20678, 20860, 27118, 27430, 29204, 29540, 31439, 36505, 38402, 38740, 41356, 51695, 54236, 54860, 62878, 67795, 73010, 76804, 94913, 96005, 103390, 125756, 134407, 135590, 146020, 157195, 189826, 192010, 206780, 220073, 268814, 271180, 314390, 379652, 384020, 408707, 440146, 474565, 537628, 628780, 672035, 817414, 880292, 949130, 1100365, 1344070, 1540511, 1634828, 1898260, 2043535, 2200730, 2688140, 2860949, 3081022, 4087070, 4401460, 5721898, 6162044, 7702555, 8174140, 11443796, 14304745, 15405110, 20026643, 28609490, 30810220, 40053286, 57218980, 80106572, 100133215, 200266430, 400532860]

約数ペア:

[(1, 400532860), (2, 200266430), (4, 100133215), (5, 80106572), (7, 57218980), (10, 40053286), (13, 30810220), (14, 28609490), (20, 20026643), (26, 15405110), (28, 14304745), (35, 11443796), (49, 8174140), (52, 7702555), (65, 6162044), (70, 5721898), (91, 4401460), (98, 4087070), (130, 3081022), (140, 2860949), (149, 2688140), (182, 2200730), (196, 2043535), (211, 1898260), (245, 1634828), (260, 1540511), (298, 1344070), (364, 1100365), (422, 949130), (455, 880292), (490, 817414), (596, 672035), (637, 628780), (745, 537628), (844, 474565), (910, 440146), (980, 408707), (1043, 384020), (1055, 379652), (1274, 314390), (1477, 271180), (1490, 268814), (1820, 220073), (1937, 206780), (2086, 192010), (2110, 189826), (2548, 157195), (2743, 146020), (2954, 135590), (2980, 134407), (3185, 125756), (3874, 103390), (4172, 96005), (4220, 94913), (5215, 76804), (5486, 73010), (5908, 67795), (6370, 62878), (7301, 54860), (7385, 54236), (7748, 51695), (9685, 41356), (10339, 38740), (10430, 38402), (10972, 36505), (12740, 31439), (13559, 29540), (13715, 29204), (14602, 27430), (14770, 27118), (19201, 20860), (19370, 20678)]