31940280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{307}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 110630520

約数和(自身を除く): 78690240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 289, 306, 307, 340, 360, 408, 510, 578, 612, 614, 680, 765, 867, 921, 1020, 1156, 1224, 1228, 1445, 1530, 1535, 1734, 1842, 2040, 2312, 2456, 2601, 2763, 2890, 3060, 3070, 3468, 3684, 4335, 4605, 5202, 5219, 5526, 5780, 6120, 6140, 6936, 7368, 8670, 9210, 10404, 10438, 11052, 11560, 12280, 13005, 13815, 15657, 17340, 18420, 20808, 20876, 22104, 26010, 26095, 27630, 31314, 34680, 36840, 41752, 46971, 52020, 52190, 55260, 62628, 78285, 88723, 93942, 104040, 104380, 110520, 125256, 156570, 177446, 187884, 208760, 234855, 266169, 313140, 354892, 375768, 443615, 469710, 532338, 626280, 709784, 798507, 887230, 939420, 1064676, 1330845, 1597014, 1774460, 1878840, 2129352, 2661690, 3194028, 3548920, 3992535, 5323380, 6388056, 7985070, 10646760, 15970140, 31940280]

約数ペア:

[(1, 31940280), (2, 15970140), (3, 10646760), (4, 7985070), (5, 6388056), (6, 5323380), (8, 3992535), (9, 3548920), (10, 3194028), (12, 2661690), (15, 2129352), (17, 1878840), (18, 1774460), (20, 1597014), (24, 1330845), (30, 1064676), (34, 939420), (36, 887230), (40, 798507), (45, 709784), (51, 626280), (60, 532338), (68, 469710), (72, 443615), (85, 375768), (90, 354892), (102, 313140), (120, 266169), (136, 234855), (153, 208760), (170, 187884), (180, 177446), (204, 156570), (255, 125256), (289, 110520), (306, 104380), (307, 104040), (340, 93942), (360, 88723), (408, 78285), (510, 62628), (578, 55260), (612, 52190), (614, 52020), (680, 46971), (765, 41752), (867, 36840), (921, 34680), (1020, 31314), (1156, 27630), (1224, 26095), (1228, 26010), (1445, 22104), (1530, 20876), (1535, 20808), (1734, 18420), (1842, 17340), (2040, 15657), (2312, 13815), (2456, 13005), (2601, 12280), (2763, 11560), (2890, 11052), (3060, 10438), (3070, 10404), (3468, 9210), (3684, 8670), (4335, 7368), (4605, 6936), (5202, 6140), (5219, 6120), (5526, 5780)]