291379480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{148663}}^1$

素因数の和:148688

約数の個数: 48

約数和(自身を含む): 762646320

約数和(自身を除く): 471266840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 148663, 297326, 594652, 743315, 1040641, 1189304, 1486630, 2081282, 2973260, 4162564, 5203205, 5946520, 7284487, 8325128, 10406410, 14568974, 20812820, 29137948, 36422435, 41625640, 58275896, 72844870, 145689740, 291379480]

約数ペア:

[(1, 291379480), (2, 145689740), (4, 72844870), (5, 58275896), (7, 41625640), (8, 36422435), (10, 29137948), (14, 20812820), (20, 14568974), (28, 10406410), (35, 8325128), (40, 7284487), (49, 5946520), (56, 5203205), (70, 4162564), (98, 2973260), (140, 2081282), (196, 1486630), (245, 1189304), (280, 1040641), (392, 743315), (490, 594652), (980, 297326), (1960, 148663)]