320129880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1709}}^1$

素因数の和:1953

約数の個数: 128

約数和(自身を含む): 1103155200

約数和(自身を除く): 783025320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 223, 280, 420, 446, 669, 840, 892, 1115, 1338, 1561, 1709, 1784, 2230, 2676, 3122, 3345, 3418, 4460, 4683, 5127, 5352, 6244, 6690, 6836, 7805, 8545, 8920, 9366, 10254, 11963, 12488, 13380, 13672, 15610, 17090, 18732, 20508, 23415, 23926, 25635, 26760, 31220, 34180, 35889, 37464, 41016, 46830, 47852, 51270, 59815, 62440, 68360, 71778, 93660, 95704, 102540, 119630, 143556, 179445, 187320, 205080, 239260, 287112, 358890, 381107, 478520, 717780, 762214, 1143321, 1435560, 1524428, 1905535, 2286642, 2667749, 3048856, 3811070, 4573284, 5335498, 5716605, 7622140, 8003247, 9146568, 10670996, 11433210, 13338745, 15244280, 16006494, 21341992, 22866420, 26677490, 32012988, 40016235, 45732840, 53354980, 64025976, 80032470, 106709960, 160064940, 320129880]

約数ペア:

[(1, 320129880), (2, 160064940), (3, 106709960), (4, 80032470), (5, 64025976), (6, 53354980), (7, 45732840), (8, 40016235), (10, 32012988), (12, 26677490), (14, 22866420), (15, 21341992), (20, 16006494), (21, 15244280), (24, 13338745), (28, 11433210), (30, 10670996), (35, 9146568), (40, 8003247), (42, 7622140), (56, 5716605), (60, 5335498), (70, 4573284), (84, 3811070), (105, 3048856), (120, 2667749), (140, 2286642), (168, 1905535), (210, 1524428), (223, 1435560), (280, 1143321), (420, 762214), (446, 717780), (669, 478520), (840, 381107), (892, 358890), (1115, 287112), (1338, 239260), (1561, 205080), (1709, 187320), (1784, 179445), (2230, 143556), (2676, 119630), (3122, 102540), (3345, 95704), (3418, 93660), (4460, 71778), (4683, 68360), (5127, 62440), (5352, 59815), (6244, 51270), (6690, 47852), (6836, 46830), (7805, 41016), (8545, 37464), (8920, 35889), (9366, 34180), (10254, 31220), (11963, 26760), (12488, 25635), (13380, 23926), (13672, 23415), (15610, 20508), (17090, 18732)]