71975820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:847

約数の個数: 96

約数和(自身を含む): 231436800

約数和(自身を除く): 159460980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 409, 419, 420, 818, 838, 1227, 1257, 1636, 1676, 2045, 2095, 2454, 2514, 2863, 2933, 4090, 4190, 4908, 5028, 5726, 5866, 6135, 6285, 8180, 8380, 8589, 8799, 11452, 11732, 12270, 12570, 14315, 14665, 17178, 17598, 24540, 25140, 28630, 29330, 34356, 35196, 42945, 43995, 57260, 58660, 85890, 87990, 171371, 171780, 175980, 342742, 514113, 685484, 856855, 1028226, 1199597, 1713710, 2056452, 2399194, 2570565, 3427420, 3598791, 4798388, 5141130, 5997985, 7197582, 10282260, 11995970, 14395164, 17993955, 23991940, 35987910, 71975820]

約数ペア:

[(1, 71975820), (2, 35987910), (3, 23991940), (4, 17993955), (5, 14395164), (6, 11995970), (7, 10282260), (10, 7197582), (12, 5997985), (14, 5141130), (15, 4798388), (20, 3598791), (21, 3427420), (28, 2570565), (30, 2399194), (35, 2056452), (42, 1713710), (60, 1199597), (70, 1028226), (84, 856855), (105, 685484), (140, 514113), (210, 342742), (409, 175980), (419, 171780), (420, 171371), (818, 87990), (838, 85890), (1227, 58660), (1257, 57260), (1636, 43995), (1676, 42945), (2045, 35196), (2095, 34356), (2454, 29330), (2514, 28630), (2863, 25140), (2933, 24540), (4090, 17598), (4190, 17178), (4908, 14665), (5028, 14315), (5726, 12570), (5866, 12270), (6135, 11732), (6285, 11452), (8180, 8799), (8380, 8589)]