278300261990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1\times {\mathrm{94153}}^1$

素因数の和:94557

約数の個数: 64

約数和(自身を含む): 540157731840

約数和(自身を除く): 261857469850

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 331, 470, 662, 893, 1655, 1786, 3310, 4465, 6289, 8930, 12578, 15557, 31114, 31445, 62890, 77785, 94153, 155570, 188306, 295583, 470765, 591166, 941530, 1477915, 1788907, 2955830, 3577814, 4425191, 8850382, 8944535, 17889070, 22125955, 31164643, 44251910, 62329286, 84078629, 155823215, 168157258, 311646430, 420393145, 592128217, 840786290, 1184256434, 1464738221, 2929476442, 2960641085, 5921282170, 7323691105, 14647382210, 27830026199, 55660052398, 139150130995, 278300261990]

約数ペア:

[(1, 278300261990), (2, 139150130995), (5, 55660052398), (10, 27830026199), (19, 14647382210), (38, 7323691105), (47, 5921282170), (94, 2960641085), (95, 2929476442), (190, 1464738221), (235, 1184256434), (331, 840786290), (470, 592128217), (662, 420393145), (893, 311646430), (1655, 168157258), (1786, 155823215), (3310, 84078629), (4465, 62329286), (6289, 44251910), (8930, 31164643), (12578, 22125955), (15557, 17889070), (31114, 8944535), (31445, 8850382), (62890, 4425191), (77785, 3577814), (94153, 2955830), (155570, 1788907), (188306, 1477915), (295583, 941530), (470765, 591166)]