215972164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 429228800

約数和(自身を除く): 213256636

約数列:

[1, 2, 4, 19, 29, 31, 38, 58, 62, 76, 109, 116, 124, 218, 436, 551, 589, 841, 899, 1102, 1178, 1682, 1798, 2071, 2204, 2356, 3161, 3364, 3379, 3596, 4142, 6322, 6758, 8284, 12644, 13516, 15979, 17081, 26071, 31958, 34162, 52142, 60059, 63916, 64201, 68324, 91669, 97991, 104284, 120118, 128402, 183338, 195982, 240236, 256804, 366676, 391964, 495349, 990698, 1741711, 1861829, 1981396, 2841739, 3483422, 3723658, 5683478, 6966844, 7447316, 11366956, 53993041, 107986082, 215972164]

約数ペア:

[(1, 215972164), (2, 107986082), (4, 53993041), (19, 11366956), (29, 7447316), (31, 6966844), (38, 5683478), (58, 3723658), (62, 3483422), (76, 2841739), (109, 1981396), (116, 1861829), (124, 1741711), (218, 990698), (436, 495349), (551, 391964), (589, 366676), (841, 256804), (899, 240236), (1102, 195982), (1178, 183338), (1682, 128402), (1798, 120118), (2071, 104284), (2204, 97991), (2356, 91669), (3161, 68324), (3364, 64201), (3379, 63916), (3596, 60059), (4142, 52142), (6322, 34162), (6758, 31958), (8284, 26071), (12644, 17081), (13516, 15979)]