21898191680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{71209}}^1$

素因数の和:71288

約数の個数: 84

約数和(自身を含む): 53882185860

約数和(自身を除く): 31983994180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 961, 992, 1240, 1922, 1984, 2480, 3844, 4805, 4960, 7688, 9610, 9920, 15376, 19220, 30752, 38440, 61504, 71209, 76880, 142418, 153760, 284836, 307520, 356045, 569672, 712090, 1139344, 1424180, 2207479, 2278688, 2848360, 4414958, 4557376, 5696720, 8829916, 11037395, 11393440, 17659832, 22074790, 22786880, 35319664, 44149580, 68431849, 70639328, 88299160, 136863698, 141278656, 176598320, 273727396, 342159245, 353196640, 547454792, 684318490, 706393280, 1094909584, 1368636980, 2189819168, 2737273960, 4379638336, 5474547920, 10949095840, 21898191680]

約数ペア:

[(1, 21898191680), (2, 10949095840), (4, 5474547920), (5, 4379638336), (8, 2737273960), (10, 2189819168), (16, 1368636980), (20, 1094909584), (31, 706393280), (32, 684318490), (40, 547454792), (62, 353196640), (64, 342159245), (80, 273727396), (124, 176598320), (155, 141278656), (160, 136863698), (248, 88299160), (310, 70639328), (320, 68431849), (496, 44149580), (620, 35319664), (961, 22786880), (992, 22074790), (1240, 17659832), (1922, 11393440), (1984, 11037395), (2480, 8829916), (3844, 5696720), (4805, 4557376), (4960, 4414958), (7688, 2848360), (9610, 2278688), (9920, 2207479), (15376, 1424180), (19220, 1139344), (30752, 712090), (38440, 569672), (61504, 356045), (71209, 307520), (76880, 284836), (142418, 153760)]