39913120

素因数分解:

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

素因数の和:678

約数の個数: 96

約数和(自身を含む): 104993280

約数和(自身を除く): 65080160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 619, 620, 806, 992, 1040, 1238, 1240, 1612, 2015, 2080, 2476, 2480, 3095, 3224, 4030, 4952, 4960, 6190, 6448, 8047, 8060, 9904, 12380, 12896, 16094, 16120, 19189, 19808, 24760, 32188, 32240, 38378, 40235, 49520, 64376, 64480, 76756, 80470, 95945, 99040, 128752, 153512, 160940, 191890, 249457, 257504, 307024, 321880, 383780, 498914, 614048, 643760, 767560, 997828, 1247285, 1287520, 1535120, 1995656, 2494570, 3070240, 3991312, 4989140, 7982624, 9978280, 19956560, 39913120]

約数ペア:

[(1, 39913120), (2, 19956560), (4, 9978280), (5, 7982624), (8, 4989140), (10, 3991312), (13, 3070240), (16, 2494570), (20, 1995656), (26, 1535120), (31, 1287520), (32, 1247285), (40, 997828), (52, 767560), (62, 643760), (65, 614048), (80, 498914), (104, 383780), (124, 321880), (130, 307024), (155, 257504), (160, 249457), (208, 191890), (248, 160940), (260, 153512), (310, 128752), (403, 99040), (416, 95945), (496, 80470), (520, 76756), (619, 64480), (620, 64376), (806, 49520), (992, 40235), (1040, 38378), (1238, 32240), (1240, 32188), (1612, 24760), (2015, 19808), (2080, 19189), (2476, 16120), (2480, 16094), (3095, 12896), (3224, 12380), (4030, 9904), (4952, 8060), (4960, 8047), (6190, 6448)]