319304960

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:684

約数の個数: 144

約数和(自身を含む): 851612160

約数和(自身を除く): 532307200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 619, 620, 640, 806, 832, 992, 1040, 1238, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2476, 2480, 3095, 3224, 3328, 3968, 4030, 4160, 4952, 4960, 6190, 6448, 7936, 8047, 8060, 8320, 9904, 9920, 12380, 12896, 16094, 16120, 16640, 19189, 19808, 19840, 24760, 25792, 32188, 32240, 38378, 39616, 39680, 40235, 49520, 51584, 64376, 64480, 76756, 79232, 80470, 95945, 99040, 103168, 128752, 128960, 153512, 158464, 160940, 191890, 198080, 249457, 257504, 257920, 307024, 321880, 383780, 396160, 498914, 515008, 515840, 614048, 643760, 767560, 792320, 997828, 1030016, 1228096, 1247285, 1287520, 1535120, 1995656, 2060032, 2456192, 2494570, 2575040, 3070240, 3991312, 4912384, 4989140, 5150080, 6140480, 7982624, 9978280, 10300160, 12280960, 15965248, 19956560, 24561920, 31930496, 39913120, 63860992, 79826240, 159652480, 319304960]

約数ペア:

[(1, 319304960), (2, 159652480), (4, 79826240), (5, 63860992), (8, 39913120), (10, 31930496), (13, 24561920), (16, 19956560), (20, 15965248), (26, 12280960), (31, 10300160), (32, 9978280), (40, 7982624), (52, 6140480), (62, 5150080), (64, 4989140), (65, 4912384), (80, 3991312), (104, 3070240), (124, 2575040), (128, 2494570), (130, 2456192), (155, 2060032), (160, 1995656), (208, 1535120), (248, 1287520), (256, 1247285), (260, 1228096), (310, 1030016), (320, 997828), (403, 792320), (416, 767560), (496, 643760), (520, 614048), (619, 515840), (620, 515008), (640, 498914), (806, 396160), (832, 383780), (992, 321880), (1040, 307024), (1238, 257920), (1240, 257504), (1280, 249457), (1612, 198080), (1664, 191890), (1984, 160940), (2015, 158464), (2080, 153512), (2476, 128960), (2480, 128752), (3095, 103168), (3224, 99040), (3328, 95945), (3968, 80470), (4030, 79232), (4160, 76756), (4952, 64480), (4960, 64376), (6190, 51584), (6448, 49520), (7936, 40235), (8047, 39680), (8060, 39616), (8320, 38378), (9904, 32240), (9920, 32188), (12380, 25792), (12896, 24760), (16094, 19840), (16120, 19808), (16640, 19189)]