2168400420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{28751}}^1$

素因数の和:29185

約数の個数: 72

約数和(自身を含む): 6593408640

約数和(自身を除く): 4425008220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 838, 1257, 1676, 2095, 2514, 3771, 4190, 5028, 6285, 7542, 8380, 12570, 15084, 18855, 25140, 28751, 37710, 57502, 75420, 86253, 115004, 143755, 172506, 258759, 287510, 345012, 431265, 517518, 575020, 862530, 1035036, 1293795, 1725060, 2587590, 5175180, 12046669, 24093338, 36140007, 48186676, 60233345, 72280014, 108420021, 120466690, 144560028, 180700035, 216840042, 240933380, 361400070, 433680084, 542100105, 722800140, 1084200210, 2168400420]

約数ペア:

[(1, 2168400420), (2, 1084200210), (3, 722800140), (4, 542100105), (5, 433680084), (6, 361400070), (9, 240933380), (10, 216840042), (12, 180700035), (15, 144560028), (18, 120466690), (20, 108420021), (30, 72280014), (36, 60233345), (45, 48186676), (60, 36140007), (90, 24093338), (180, 12046669), (419, 5175180), (838, 2587590), (1257, 1725060), (1676, 1293795), (2095, 1035036), (2514, 862530), (3771, 575020), (4190, 517518), (5028, 431265), (6285, 345012), (7542, 287510), (8380, 258759), (12570, 172506), (15084, 143755), (18855, 115004), (25140, 86253), (28751, 75420), (37710, 57502)]