19621760

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 128

約数和(自身を含む): 51701760

約数和(自身を除く): 32080000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 43, 46, 62, 64, 80, 86, 92, 115, 124, 128, 155, 160, 172, 184, 215, 230, 248, 310, 320, 344, 368, 430, 460, 496, 620, 640, 688, 713, 736, 860, 920, 989, 992, 1240, 1333, 1376, 1426, 1472, 1720, 1840, 1978, 1984, 2480, 2666, 2752, 2852, 2944, 3440, 3565, 3680, 3956, 3968, 4945, 4960, 5332, 5504, 5704, 6665, 6880, 7130, 7360, 7912, 9890, 9920, 10664, 11408, 13330, 13760, 14260, 14720, 15824, 19780, 19840, 21328, 22816, 26660, 27520, 28520, 30659, 31648, 39560, 42656, 45632, 53320, 57040, 61318, 63296, 79120, 85312, 91264, 106640, 114080, 122636, 126592, 153295, 158240, 170624, 213280, 228160, 245272, 306590, 316480, 426560, 456320, 490544, 613180, 632960, 853120, 981088, 1226360, 1962176, 2452720, 3924352, 4905440, 9810880, 19621760]

約数ペア:

[(1, 19621760), (2, 9810880), (4, 4905440), (5, 3924352), (8, 2452720), (10, 1962176), (16, 1226360), (20, 981088), (23, 853120), (31, 632960), (32, 613180), (40, 490544), (43, 456320), (46, 426560), (62, 316480), (64, 306590), (80, 245272), (86, 228160), (92, 213280), (115, 170624), (124, 158240), (128, 153295), (155, 126592), (160, 122636), (172, 114080), (184, 106640), (215, 91264), (230, 85312), (248, 79120), (310, 63296), (320, 61318), (344, 57040), (368, 53320), (430, 45632), (460, 42656), (496, 39560), (620, 31648), (640, 30659), (688, 28520), (713, 27520), (736, 26660), (860, 22816), (920, 21328), (989, 19840), (992, 19780), (1240, 15824), (1333, 14720), (1376, 14260), (1426, 13760), (1472, 13330), (1720, 11408), (1840, 10664), (1978, 9920), (1984, 9890), (2480, 7912), (2666, 7360), (2752, 7130), (2852, 6880), (2944, 6665), (3440, 5704), (3565, 5504), (3680, 5332), (3956, 4960), (3968, 4945)]