321900280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1051}}^1$

素因数の和:1125

約数の個数: 128

約数和(自身を含む): 848332800

約数和(自身を除く): 526432520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 190, 247, 248, 260, 310, 380, 403, 494, 520, 589, 620, 760, 806, 988, 1051, 1178, 1235, 1240, 1612, 1976, 2015, 2102, 2356, 2470, 2945, 3224, 4030, 4204, 4712, 4940, 5255, 5890, 7657, 8060, 8408, 9880, 10510, 11780, 13663, 15314, 16120, 19969, 21020, 23560, 27326, 30628, 32581, 38285, 39938, 42040, 54652, 61256, 65162, 68315, 76570, 79876, 99845, 109304, 130324, 136630, 153140, 159752, 162905, 199690, 259597, 260648, 273260, 306280, 325810, 399380, 423553, 519194, 546520, 619039, 651620, 798760, 847106, 1038388, 1238078, 1297985, 1303240, 1694212, 2076776, 2117765, 2476156, 2595970, 3095195, 3388424, 4235530, 4952312, 5191940, 6190390, 8047507, 8471060, 10383880, 12380780, 16095014, 16942120, 24761560, 32190028, 40237535, 64380056, 80475070, 160950140, 321900280]

約数ペア:

[(1, 321900280), (2, 160950140), (4, 80475070), (5, 64380056), (8, 40237535), (10, 32190028), (13, 24761560), (19, 16942120), (20, 16095014), (26, 12380780), (31, 10383880), (38, 8471060), (40, 8047507), (52, 6190390), (62, 5191940), (65, 4952312), (76, 4235530), (95, 3388424), (104, 3095195), (124, 2595970), (130, 2476156), (152, 2117765), (155, 2076776), (190, 1694212), (247, 1303240), (248, 1297985), (260, 1238078), (310, 1038388), (380, 847106), (403, 798760), (494, 651620), (520, 619039), (589, 546520), (620, 519194), (760, 423553), (806, 399380), (988, 325810), (1051, 306280), (1178, 273260), (1235, 260648), (1240, 259597), (1612, 199690), (1976, 162905), (2015, 159752), (2102, 153140), (2356, 136630), (2470, 130324), (2945, 109304), (3224, 99845), (4030, 79876), (4204, 76570), (4712, 68315), (4940, 65162), (5255, 61256), (5890, 54652), (7657, 42040), (8060, 39938), (8408, 38285), (9880, 32581), (10510, 30628), (11780, 27326), (13663, 23560), (15314, 21020), (16120, 19969)]