161563220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{88771}}^1$

素因数の和:88800

約数の個数: 48

約数和(自身を含む): 417583488

約数和(自身を除く): 256020268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 88771, 177542, 355084, 443855, 621397, 887710, 1154023, 1242794, 1775420, 2308046, 2485588, 3106985, 4616092, 5770115, 6213970, 8078161, 11540230, 12427940, 16156322, 23080460, 32312644, 40390805, 80781610, 161563220]

約数ペア:

[(1, 161563220), (2, 80781610), (4, 40390805), (5, 32312644), (7, 23080460), (10, 16156322), (13, 12427940), (14, 11540230), (20, 8078161), (26, 6213970), (28, 5770115), (35, 4616092), (52, 3106985), (65, 2485588), (70, 2308046), (91, 1775420), (130, 1242794), (140, 1154023), (182, 887710), (260, 621397), (364, 443855), (455, 355084), (910, 177542), (1820, 88771)]