31277680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 120

約数和(自身を含む): 86512320

約数和(自身を除く): 55234640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 79, 80, 98, 101, 112, 140, 158, 196, 202, 245, 280, 316, 392, 395, 404, 490, 505, 553, 560, 632, 707, 784, 790, 808, 980, 1010, 1106, 1264, 1414, 1580, 1616, 1960, 2020, 2212, 2765, 2828, 3160, 3535, 3871, 3920, 4040, 4424, 4949, 5530, 5656, 6320, 7070, 7742, 7979, 8080, 8848, 9898, 11060, 11312, 14140, 15484, 15958, 19355, 19796, 22120, 24745, 28280, 30968, 31916, 38710, 39592, 39895, 44240, 49490, 55853, 56560, 61936, 63832, 77420, 79184, 79790, 98980, 111706, 127664, 154840, 159580, 197960, 223412, 279265, 309680, 319160, 390971, 395920, 446824, 558530, 638320, 781942, 893648, 1117060, 1563884, 1954855, 2234120, 3127768, 3909710, 4468240, 6255536, 7819420, 15638840, 31277680]

約数ペア:

[(1, 31277680), (2, 15638840), (4, 7819420), (5, 6255536), (7, 4468240), (8, 3909710), (10, 3127768), (14, 2234120), (16, 1954855), (20, 1563884), (28, 1117060), (35, 893648), (40, 781942), (49, 638320), (56, 558530), (70, 446824), (79, 395920), (80, 390971), (98, 319160), (101, 309680), (112, 279265), (140, 223412), (158, 197960), (196, 159580), (202, 154840), (245, 127664), (280, 111706), (316, 98980), (392, 79790), (395, 79184), (404, 77420), (490, 63832), (505, 61936), (553, 56560), (560, 55853), (632, 49490), (707, 44240), (784, 39895), (790, 39592), (808, 38710), (980, 31916), (1010, 30968), (1106, 28280), (1264, 24745), (1414, 22120), (1580, 19796), (1616, 19355), (1960, 15958), (2020, 15484), (2212, 14140), (2765, 11312), (2828, 11060), (3160, 9898), (3535, 8848), (3871, 8080), (3920, 7979), (4040, 7742), (4424, 7070), (4949, 6320), (5530, 5656)]