720573420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1789}}^1$

素因数の和:1952

約数の個数: 144

約数和(自身を含む): 2365463520

約数和(自身を除く): 1644890100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 137, 140, 147, 196, 210, 245, 274, 294, 411, 420, 490, 548, 588, 685, 735, 822, 959, 980, 1370, 1470, 1644, 1789, 1918, 2055, 2740, 2877, 2940, 3578, 3836, 4110, 4795, 5367, 5754, 6713, 7156, 8220, 8945, 9590, 10734, 11508, 12523, 13426, 14385, 17890, 19180, 20139, 21468, 25046, 26835, 26852, 28770, 33565, 35780, 37569, 40278, 50092, 53670, 57540, 62615, 67130, 75138, 80556, 87661, 100695, 107340, 125230, 134260, 150276, 175322, 187845, 201390, 245093, 250460, 262983, 350644, 375690, 402780, 438305, 490186, 525966, 735279, 751380, 876610, 980372, 1051932, 1225465, 1314915, 1470558, 1715651, 1753220, 2450930, 2629830, 2941116, 3431302, 3676395, 4901860, 5146953, 5259660, 6862604, 7352790, 8578255, 10293906, 12009557, 14705580, 17156510, 20587812, 24019114, 25734765, 34313020, 36028671, 48038228, 51469530, 60047785, 72057342, 102939060, 120095570, 144114684, 180143355, 240191140, 360286710, 720573420]

約数ペア:

[(1, 720573420), (2, 360286710), (3, 240191140), (4, 180143355), (5, 144114684), (6, 120095570), (7, 102939060), (10, 72057342), (12, 60047785), (14, 51469530), (15, 48038228), (20, 36028671), (21, 34313020), (28, 25734765), (30, 24019114), (35, 20587812), (42, 17156510), (49, 14705580), (60, 12009557), (70, 10293906), (84, 8578255), (98, 7352790), (105, 6862604), (137, 5259660), (140, 5146953), (147, 4901860), (196, 3676395), (210, 3431302), (245, 2941116), (274, 2629830), (294, 2450930), (411, 1753220), (420, 1715651), (490, 1470558), (548, 1314915), (588, 1225465), (685, 1051932), (735, 980372), (822, 876610), (959, 751380), (980, 735279), (1370, 525966), (1470, 490186), (1644, 438305), (1789, 402780), (1918, 375690), (2055, 350644), (2740, 262983), (2877, 250460), (2940, 245093), (3578, 201390), (3836, 187845), (4110, 175322), (4795, 150276), (5367, 134260), (5754, 125230), (6713, 107340), (7156, 100695), (8220, 87661), (8945, 80556), (9590, 75138), (10734, 67130), (11508, 62615), (12523, 57540), (13426, 53670), (14385, 50092), (17890, 40278), (19180, 37569), (20139, 35780), (21468, 33565), (25046, 28770), (26835, 26852)]