239254840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{28619}}^1$

素因数の和:28660

約数の個数: 64

約数和(自身を含む): 618192000

約数和(自身を除く): 378937160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 28619, 57238, 114476, 143095, 228952, 286190, 314809, 543761, 572380, 629618, 1087522, 1144760, 1259236, 1574045, 2175044, 2518472, 2718805, 3148090, 4350088, 5437610, 5981371, 6296180, 10875220, 11962742, 12592360, 21750440, 23925484, 29906855, 47850968, 59813710, 119627420, 239254840]

約数ペア:

[(1, 239254840), (2, 119627420), (4, 59813710), (5, 47850968), (8, 29906855), (10, 23925484), (11, 21750440), (19, 12592360), (20, 11962742), (22, 10875220), (38, 6296180), (40, 5981371), (44, 5437610), (55, 4350088), (76, 3148090), (88, 2718805), (95, 2518472), (110, 2175044), (152, 1574045), (190, 1259236), (209, 1144760), (220, 1087522), (380, 629618), (418, 572380), (440, 543761), (760, 314809), (836, 286190), (1045, 228952), (1672, 143095), (2090, 114476), (4180, 57238), (8360, 28619)]