20408876164

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:969

約数の個数: 72

約数和(自身を含む): 37851253440

約数和(自身を除く): 17442377276

約数列:

[1, 2, 4, 31, 62, 67, 109, 124, 134, 218, 268, 436, 727, 961, 1454, 1922, 2077, 2908, 3379, 3844, 4154, 6758, 7303, 8308, 13516, 14606, 22537, 29212, 45074, 48709, 64387, 79243, 90148, 97418, 104749, 128774, 158486, 194836, 209498, 226393, 257548, 316972, 418996, 452786, 698647, 905572, 1397294, 1509979, 2456533, 2794588, 3019958, 4913066, 5309281, 6039916, 7018183, 9826132, 10618562, 14036366, 21237124, 28072732, 46809349, 76152523, 93618698, 152305046, 164587711, 187237396, 304610092, 329175422, 658350844, 5102219041, 10204438082, 20408876164]

約数ペア:

[(1, 20408876164), (2, 10204438082), (4, 5102219041), (31, 658350844), (62, 329175422), (67, 304610092), (109, 187237396), (124, 164587711), (134, 152305046), (218, 93618698), (268, 76152523), (436, 46809349), (727, 28072732), (961, 21237124), (1454, 14036366), (1922, 10618562), (2077, 9826132), (2908, 7018183), (3379, 6039916), (3844, 5309281), (4154, 4913066), (6758, 3019958), (7303, 2794588), (8308, 2456533), (13516, 1509979), (14606, 1397294), (22537, 905572), (29212, 698647), (45074, 452786), (48709, 418996), (64387, 316972), (79243, 257548), (90148, 226393), (97418, 209498), (104749, 194836), (128774, 158486)]