620721920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2$

素因数の和:187

約数の個数: 216

約数和(自身を含む): 1855346976

約数和(自身を除く): 1234625056

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 73, 80, 91, 104, 112, 128, 130, 140, 146, 160, 182, 208, 224, 256, 260, 280, 292, 320, 364, 365, 416, 448, 455, 511, 520, 560, 584, 640, 728, 730, 832, 896, 910, 949, 1022, 1040, 1120, 1168, 1280, 1456, 1460, 1664, 1792, 1820, 1898, 2044, 2080, 2240, 2336, 2555, 2912, 2920, 3328, 3640, 3796, 4088, 4160, 4480, 4672, 4745, 5110, 5329, 5824, 5840, 6643, 7280, 7592, 8176, 8320, 8960, 9344, 9490, 10220, 10658, 11648, 11680, 13286, 14560, 15184, 16352, 16640, 18688, 18980, 20440, 21316, 23296, 23360, 26572, 26645, 29120, 30368, 32704, 33215, 37303, 37960, 40880, 42632, 46720, 53144, 53290, 58240, 60736, 65408, 66430, 69277, 74606, 75920, 81760, 85264, 93440, 106288, 106580, 116480, 121472, 130816, 132860, 138554, 149212, 151840, 163520, 170528, 186515, 212576, 213160, 242944, 265720, 277108, 298424, 303680, 327040, 341056, 346385, 373030, 425152, 426320, 484939, 531440, 554216, 596848, 607360, 654080, 682112, 692770, 746060, 850304, 852640, 969878, 1062880, 1108432, 1193696, 1214720, 1364224, 1385540, 1492120, 1700608, 1705280, 1939756, 2125760, 2216864, 2387392, 2424695, 2771080, 2984240, 3410560, 3879512, 4251520, 4433728, 4774784, 4849390, 5542160, 5968480, 6821120, 7759024, 8503040, 8867456, 9549568, 9698780, 11084320, 11936960, 15518048, 17734912, 19397560, 22168640, 23873920, 31036096, 38795120, 44337280, 47747840, 62072192, 77590240, 88674560, 124144384, 155180480, 310360960, 620721920]

約数ペア:

[(1, 620721920), (2, 310360960), (4, 155180480), (5, 124144384), (7, 88674560), (8, 77590240), (10, 62072192), (13, 47747840), (14, 44337280), (16, 38795120), (20, 31036096), (26, 23873920), (28, 22168640), (32, 19397560), (35, 17734912), (40, 15518048), (52, 11936960), (56, 11084320), (64, 9698780), (65, 9549568), (70, 8867456), (73, 8503040), (80, 7759024), (91, 6821120), (104, 5968480), (112, 5542160), (128, 4849390), (130, 4774784), (140, 4433728), (146, 4251520), (160, 3879512), (182, 3410560), (208, 2984240), (224, 2771080), (256, 2424695), (260, 2387392), (280, 2216864), (292, 2125760), (320, 1939756), (364, 1705280), (365, 1700608), (416, 1492120), (448, 1385540), (455, 1364224), (511, 1214720), (520, 1193696), (560, 1108432), (584, 1062880), (640, 969878), (728, 852640), (730, 850304), (832, 746060), (896, 692770), (910, 682112), (949, 654080), (1022, 607360), (1040, 596848), (1120, 554216), (1168, 531440), (1280, 484939), (1456, 426320), (1460, 425152), (1664, 373030), (1792, 346385), (1820, 341056), (1898, 327040), (2044, 303680), (2080, 298424), (2240, 277108), (2336, 265720), (2555, 242944), (2912, 213160), (2920, 212576), (3328, 186515), (3640, 170528), (3796, 163520), (4088, 151840), (4160, 149212), (4480, 138554), (4672, 132860), (4745, 130816), (5110, 121472), (5329, 116480), (5824, 106580), (5840, 106288), (6643, 93440), (7280, 85264), (7592, 81760), (8176, 75920), (8320, 74606), (8960, 69277), (9344, 66430), (9490, 65408), (10220, 60736), (10658, 58240), (11648, 53290), (11680, 53144), (13286, 46720), (14560, 42632), (15184, 40880), (16352, 37960), (16640, 37303), (18688, 33215), (18980, 32704), (20440, 30368), (21316, 29120), (23296, 26645), (23360, 26572)]