1977229840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1\times {\mathrm{1373}}^1$

素因数の和:1816

約数の個数: 80

約数和(自身を含む): 4710555648

約数和(自身を除く): 2733325808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 383, 470, 752, 766, 940, 1373, 1532, 1880, 1915, 2746, 3064, 3760, 3830, 5492, 6128, 6865, 7660, 10984, 13730, 15320, 18001, 21968, 27460, 30640, 36002, 54920, 64531, 72004, 90005, 109840, 129062, 144008, 180010, 258124, 288016, 322655, 360020, 516248, 525859, 645310, 720040, 1032496, 1051718, 1290620, 1440080, 2103436, 2581240, 2629295, 4206872, 5162480, 5258590, 8413744, 10517180, 21034360, 24715373, 42068720, 49430746, 98861492, 123576865, 197722984, 247153730, 395445968, 494307460, 988614920, 1977229840]

約数ペア:

[(1, 1977229840), (2, 988614920), (4, 494307460), (5, 395445968), (8, 247153730), (10, 197722984), (16, 123576865), (20, 98861492), (40, 49430746), (47, 42068720), (80, 24715373), (94, 21034360), (188, 10517180), (235, 8413744), (376, 5258590), (383, 5162480), (470, 4206872), (752, 2629295), (766, 2581240), (940, 2103436), (1373, 1440080), (1532, 1290620), (1880, 1051718), (1915, 1032496), (2746, 720040), (3064, 645310), (3760, 525859), (3830, 516248), (5492, 360020), (6128, 322655), (6865, 288016), (7660, 258124), (10984, 180010), (13730, 144008), (15320, 129062), (18001, 109840), (21968, 90005), (27460, 72004), (30640, 64531), (36002, 54920)]