31778720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 79833600

約数和(自身を除く): 48054880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 80, 86, 124, 149, 155, 160, 172, 215, 248, 298, 310, 344, 430, 496, 596, 620, 688, 745, 860, 992, 1192, 1240, 1333, 1376, 1490, 1720, 2384, 2480, 2666, 2980, 3440, 4619, 4768, 4960, 5332, 5960, 6407, 6665, 6880, 9238, 10664, 11920, 12814, 13330, 18476, 21328, 23095, 23840, 25628, 26660, 32035, 36952, 42656, 46190, 51256, 53320, 64070, 73904, 92380, 102512, 106640, 128140, 147808, 184760, 198617, 205024, 213280, 256280, 369520, 397234, 512560, 739040, 794468, 993085, 1025120, 1588936, 1986170, 3177872, 3972340, 6355744, 7944680, 15889360, 31778720]

約数ペア:

[(1, 31778720), (2, 15889360), (4, 7944680), (5, 6355744), (8, 3972340), (10, 3177872), (16, 1986170), (20, 1588936), (31, 1025120), (32, 993085), (40, 794468), (43, 739040), (62, 512560), (80, 397234), (86, 369520), (124, 256280), (149, 213280), (155, 205024), (160, 198617), (172, 184760), (215, 147808), (248, 128140), (298, 106640), (310, 102512), (344, 92380), (430, 73904), (496, 64070), (596, 53320), (620, 51256), (688, 46190), (745, 42656), (860, 36952), (992, 32035), (1192, 26660), (1240, 25628), (1333, 23840), (1376, 23095), (1490, 21328), (1720, 18476), (2384, 13330), (2480, 12814), (2666, 11920), (2980, 10664), (3440, 9238), (4619, 6880), (4768, 6665), (4960, 6407), (5332, 5960)]