400205784

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:749

約数の個数: 128

約数和(自身を含む): 1142784000

約数和(自身を除く): 742578216

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 31, 33, 44, 62, 66, 79, 88, 93, 124, 132, 158, 186, 237, 248, 264, 316, 341, 372, 474, 619, 632, 682, 744, 869, 948, 1023, 1238, 1364, 1738, 1857, 1896, 2046, 2449, 2476, 2607, 2728, 3476, 3714, 4092, 4898, 4952, 5214, 6809, 6952, 7347, 7428, 8184, 9796, 10428, 13618, 14694, 14856, 19189, 19592, 20427, 20856, 26939, 27236, 29388, 38378, 40854, 48901, 53878, 54472, 57567, 58776, 76756, 80817, 81708, 97802, 107756, 115134, 146703, 153512, 161634, 163416, 195604, 211079, 215512, 230268, 293406, 323268, 391208, 422158, 460536, 537911, 586812, 633237, 646536, 844316, 1075822, 1173624, 1266474, 1515931, 1613733, 1688632, 2151644, 2532948, 3031862, 3227466, 4303288, 4547793, 5065896, 6063724, 6454932, 9095586, 12127448, 12909864, 16675241, 18191172, 33350482, 36382344, 50025723, 66700964, 100051446, 133401928, 200102892, 400205784]

約数ペア:

[(1, 400205784), (2, 200102892), (3, 133401928), (4, 100051446), (6, 66700964), (8, 50025723), (11, 36382344), (12, 33350482), (22, 18191172), (24, 16675241), (31, 12909864), (33, 12127448), (44, 9095586), (62, 6454932), (66, 6063724), (79, 5065896), (88, 4547793), (93, 4303288), (124, 3227466), (132, 3031862), (158, 2532948), (186, 2151644), (237, 1688632), (248, 1613733), (264, 1515931), (316, 1266474), (341, 1173624), (372, 1075822), (474, 844316), (619, 646536), (632, 633237), (682, 586812), (744, 537911), (869, 460536), (948, 422158), (1023, 391208), (1238, 323268), (1364, 293406), (1738, 230268), (1857, 215512), (1896, 211079), (2046, 195604), (2449, 163416), (2476, 161634), (2607, 153512), (2728, 146703), (3476, 115134), (3714, 107756), (4092, 97802), (4898, 81708), (4952, 80817), (5214, 76756), (6809, 58776), (6952, 57567), (7347, 54472), (7428, 53878), (8184, 48901), (9796, 40854), (10428, 38378), (13618, 29388), (14694, 27236), (14856, 26939), (19189, 20856), (19592, 20427)]