156984620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19477}}^1$

素因数の和:19530

約数の個数: 48

約数和(自身を含む): 366498048

約数和(自身を除く): 209513428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 19477, 38954, 77908, 97385, 194770, 253201, 389540, 506402, 603787, 1012804, 1207574, 1266005, 2415148, 2532010, 3018935, 5064020, 6037870, 7849231, 12075740, 15698462, 31396924, 39246155, 78492310, 156984620]

約数ペア:

[(1, 156984620), (2, 78492310), (4, 39246155), (5, 31396924), (10, 15698462), (13, 12075740), (20, 7849231), (26, 6037870), (31, 5064020), (52, 3018935), (62, 2532010), (65, 2415148), (124, 1266005), (130, 1207574), (155, 1012804), (260, 603787), (310, 506402), (403, 389540), (620, 253201), (806, 194770), (1612, 97385), (2015, 77908), (4030, 38954), (8060, 19477)]