128979344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 282315264

約数和(自身を除く): 153335920

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 83, 104, 124, 166, 208, 241, 248, 332, 403, 482, 496, 664, 806, 964, 1079, 1328, 1612, 1928, 2158, 2573, 3133, 3224, 3856, 4316, 5146, 6266, 6448, 7471, 8632, 10292, 12532, 14942, 17264, 20003, 20584, 25064, 29884, 33449, 40006, 41168, 50128, 59768, 66898, 80012, 97123, 119536, 133796, 160024, 194246, 260039, 267592, 320048, 388492, 520078, 535184, 620093, 776984, 1040156, 1240186, 1553968, 2080312, 2480372, 4160624, 4960744, 8061209, 9921488, 16122418, 32244836, 64489672, 128979344]

約数ペア:

[(1, 128979344), (2, 64489672), (4, 32244836), (8, 16122418), (13, 9921488), (16, 8061209), (26, 4960744), (31, 4160624), (52, 2480372), (62, 2080312), (83, 1553968), (104, 1240186), (124, 1040156), (166, 776984), (208, 620093), (241, 535184), (248, 520078), (332, 388492), (403, 320048), (482, 267592), (496, 260039), (664, 194246), (806, 160024), (964, 133796), (1079, 119536), (1328, 97123), (1612, 80012), (1928, 66898), (2158, 59768), (2573, 50128), (3133, 41168), (3224, 40006), (3856, 33449), (4316, 29884), (5146, 25064), (6266, 20584), (6448, 20003), (7471, 17264), (8632, 14942), (10292, 12532)]