128989936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 274982400

約数和(自身を除く): 145992464

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 79, 82, 131, 152, 158, 164, 262, 304, 316, 328, 524, 632, 656, 779, 1048, 1264, 1501, 1558, 2096, 2489, 3002, 3116, 3239, 4978, 5371, 6004, 6232, 6478, 9956, 10349, 10742, 12008, 12464, 12956, 19912, 20698, 21484, 24016, 25912, 39824, 41396, 42968, 51824, 61541, 82792, 85936, 102049, 123082, 165584, 196631, 204098, 246164, 393262, 408196, 424309, 492328, 786524, 816392, 848618, 984656, 1573048, 1632784, 1697236, 3146096, 3394472, 6788944, 8061871, 16123742, 32247484, 64494968, 128989936]

約数ペア:

[(1, 128989936), (2, 64494968), (4, 32247484), (8, 16123742), (16, 8061871), (19, 6788944), (38, 3394472), (41, 3146096), (76, 1697236), (79, 1632784), (82, 1573048), (131, 984656), (152, 848618), (158, 816392), (164, 786524), (262, 492328), (304, 424309), (316, 408196), (328, 393262), (524, 246164), (632, 204098), (656, 196631), (779, 165584), (1048, 123082), (1264, 102049), (1501, 85936), (1558, 82792), (2096, 61541), (2489, 51824), (3002, 42968), (3116, 41396), (3239, 39824), (4978, 25912), (5371, 24016), (6004, 21484), (6232, 20698), (6478, 19912), (9956, 12956), (10349, 12464), (10742, 12008)]