31815700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 108

約数和(自身を含む): 82723872

約数和(自身を除く): 50908172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 49, 50, 70, 86, 98, 100, 140, 151, 172, 175, 196, 215, 245, 301, 302, 350, 430, 490, 602, 604, 700, 755, 860, 980, 1057, 1075, 1204, 1225, 1505, 1510, 2107, 2114, 2150, 2450, 3010, 3020, 3775, 4214, 4228, 4300, 4900, 5285, 6020, 6493, 7399, 7525, 7550, 8428, 10535, 10570, 12986, 14798, 15050, 15100, 21070, 21140, 25972, 26425, 29596, 30100, 32465, 36995, 42140, 45451, 52675, 52850, 64930, 73990, 90902, 105350, 105700, 129860, 147980, 162325, 181804, 184975, 210700, 227255, 318157, 324650, 369950, 454510, 636314, 649300, 739900, 909020, 1136275, 1272628, 1590785, 2272550, 3181570, 4545100, 6363140, 7953925, 15907850, 31815700]

約数ペア:

[(1, 31815700), (2, 15907850), (4, 7953925), (5, 6363140), (7, 4545100), (10, 3181570), (14, 2272550), (20, 1590785), (25, 1272628), (28, 1136275), (35, 909020), (43, 739900), (49, 649300), (50, 636314), (70, 454510), (86, 369950), (98, 324650), (100, 318157), (140, 227255), (151, 210700), (172, 184975), (175, 181804), (196, 162325), (215, 147980), (245, 129860), (301, 105700), (302, 105350), (350, 90902), (430, 73990), (490, 64930), (602, 52850), (604, 52675), (700, 45451), (755, 42140), (860, 36995), (980, 32465), (1057, 30100), (1075, 29596), (1204, 26425), (1225, 25972), (1505, 21140), (1510, 21070), (2107, 15100), (2114, 15050), (2150, 14798), (2450, 12986), (3010, 10570), (3020, 10535), (3775, 8428), (4214, 7550), (4228, 7525), (4300, 7399), (4900, 6493), (5285, 6020)]