687873880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 1692057600

約数和(自身を除く): 1004183720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 89, 92, 115, 124, 155, 178, 184, 230, 248, 271, 310, 356, 445, 460, 542, 620, 712, 713, 890, 920, 1084, 1240, 1355, 1426, 1780, 2047, 2168, 2710, 2759, 2852, 3560, 3565, 4094, 5420, 5518, 5704, 6233, 7130, 8188, 8401, 10235, 10840, 11036, 12466, 13795, 14260, 16376, 16802, 20470, 22072, 24119, 24932, 27590, 28520, 31165, 33604, 40940, 42005, 48238, 49864, 55180, 62330, 63457, 67208, 81880, 84010, 96476, 110360, 120595, 124660, 126914, 168020, 192952, 193223, 241190, 249320, 253828, 317285, 336040, 386446, 482380, 507656, 554737, 634570, 747689, 772892, 964760, 966115, 1109474, 1269140, 1495378, 1545784, 1932230, 2218948, 2538280, 2773685, 2990756, 3738445, 3864460, 4437896, 5547370, 5981512, 7476890, 7728920, 11094740, 14953780, 17196847, 22189480, 29907560, 34393694, 68787388, 85984235, 137574776, 171968470, 343936940, 687873880]

約数ペア:

[(1, 687873880), (2, 343936940), (4, 171968470), (5, 137574776), (8, 85984235), (10, 68787388), (20, 34393694), (23, 29907560), (31, 22189480), (40, 17196847), (46, 14953780), (62, 11094740), (89, 7728920), (92, 7476890), (115, 5981512), (124, 5547370), (155, 4437896), (178, 3864460), (184, 3738445), (230, 2990756), (248, 2773685), (271, 2538280), (310, 2218948), (356, 1932230), (445, 1545784), (460, 1495378), (542, 1269140), (620, 1109474), (712, 966115), (713, 964760), (890, 772892), (920, 747689), (1084, 634570), (1240, 554737), (1355, 507656), (1426, 482380), (1780, 386446), (2047, 336040), (2168, 317285), (2710, 253828), (2759, 249320), (2852, 241190), (3560, 193223), (3565, 192952), (4094, 168020), (5420, 126914), (5518, 124660), (5704, 120595), (6233, 110360), (7130, 96476), (8188, 84010), (8401, 81880), (10235, 67208), (10840, 63457), (11036, 62330), (12466, 55180), (13795, 49864), (14260, 48238), (16376, 42005), (16802, 40940), (20470, 33604), (22072, 31165), (24119, 28520), (24932, 27590)]