20692400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^2\times {\mathrm{179}}^1$

素因数の和:231

約数の個数: 90

約数和(自身を含む): 53104860

約数和(自身を除く): 32412460

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 179, 200, 272, 289, 340, 358, 400, 425, 578, 680, 716, 850, 895, 1156, 1360, 1432, 1445, 1700, 1790, 2312, 2864, 2890, 3043, 3400, 3580, 4475, 4624, 5780, 6086, 6800, 7160, 7225, 8950, 11560, 12172, 14320, 14450, 15215, 17900, 23120, 24344, 28900, 30430, 35800, 48688, 51731, 57800, 60860, 71600, 76075, 103462, 115600, 121720, 152150, 206924, 243440, 258655, 304300, 413848, 517310, 608600, 827696, 1034620, 1217200, 1293275, 2069240, 2586550, 4138480, 5173100, 10346200, 20692400]

約数ペア:

[(1, 20692400), (2, 10346200), (4, 5173100), (5, 4138480), (8, 2586550), (10, 2069240), (16, 1293275), (17, 1217200), (20, 1034620), (25, 827696), (34, 608600), (40, 517310), (50, 413848), (68, 304300), (80, 258655), (85, 243440), (100, 206924), (136, 152150), (170, 121720), (179, 115600), (200, 103462), (272, 76075), (289, 71600), (340, 60860), (358, 57800), (400, 51731), (425, 48688), (578, 35800), (680, 30430), (716, 28900), (850, 24344), (895, 23120), (1156, 17900), (1360, 15215), (1432, 14450), (1445, 14320), (1700, 12172), (1790, 11560), (2312, 8950), (2864, 7225), (2890, 7160), (3043, 6800), (3400, 6086), (3580, 5780), (4475, 4624)]