31977400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 93509640

約数和(自身を除く): 61532240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 175, 182, 196, 200, 245, 251, 260, 280, 325, 350, 364, 392, 455, 490, 502, 520, 637, 650, 700, 728, 910, 980, 1004, 1225, 1255, 1274, 1300, 1400, 1757, 1820, 1960, 2008, 2275, 2450, 2510, 2548, 2600, 3185, 3263, 3514, 3640, 4550, 4900, 5020, 5096, 6275, 6370, 6526, 7028, 8785, 9100, 9800, 10040, 12299, 12550, 12740, 13052, 14056, 15925, 16315, 17570, 18200, 22841, 24598, 25100, 25480, 26104, 31850, 32630, 35140, 43925, 45682, 49196, 50200, 61495, 63700, 65260, 70280, 81575, 87850, 91364, 98392, 114205, 122990, 127400, 130520, 159887, 163150, 175700, 182728, 228410, 245980, 307475, 319774, 326300, 351400, 456820, 491960, 571025, 614950, 639548, 652600, 799435, 913640, 1142050, 1229900, 1279096, 1598870, 2284100, 2459800, 3197740, 3997175, 4568200, 6395480, 7994350, 15988700, 31977400]

約数ペア:

[(1, 31977400), (2, 15988700), (4, 7994350), (5, 6395480), (7, 4568200), (8, 3997175), (10, 3197740), (13, 2459800), (14, 2284100), (20, 1598870), (25, 1279096), (26, 1229900), (28, 1142050), (35, 913640), (40, 799435), (49, 652600), (50, 639548), (52, 614950), (56, 571025), (65, 491960), (70, 456820), (91, 351400), (98, 326300), (100, 319774), (104, 307475), (130, 245980), (140, 228410), (175, 182728), (182, 175700), (196, 163150), (200, 159887), (245, 130520), (251, 127400), (260, 122990), (280, 114205), (325, 98392), (350, 91364), (364, 87850), (392, 81575), (455, 70280), (490, 65260), (502, 63700), (520, 61495), (637, 50200), (650, 49196), (700, 45682), (728, 43925), (910, 35140), (980, 32630), (1004, 31850), (1225, 26104), (1255, 25480), (1274, 25100), (1300, 24598), (1400, 22841), (1757, 18200), (1820, 17570), (1960, 16315), (2008, 15925), (2275, 14056), (2450, 13052), (2510, 12740), (2548, 12550), (2600, 12299), (3185, 10040), (3263, 9800), (3514, 9100), (3640, 8785), (4550, 7028), (4900, 6526), (5020, 6370), (5096, 6275)]