61440705

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 116461800

約数和(自身を除く): 55021095

約数列:

[1, 3, 5, 9, 15, 23, 29, 45, 69, 87, 89, 115, 145, 207, 261, 267, 345, 435, 445, 529, 667, 801, 1035, 1305, 1335, 1587, 2001, 2047, 2581, 2645, 3335, 4005, 4761, 6003, 6141, 7743, 7935, 10005, 10235, 12905, 15341, 18423, 23229, 23805, 30015, 30705, 38715, 46023, 47081, 59363, 76705, 92115, 116145, 138069, 141243, 178089, 230115, 235405, 296815, 423729, 534267, 690345, 706215, 890445, 1365349, 2118645, 2671335, 4096047, 6826745, 12288141, 20480235, 61440705]

約数ペア:

[(1, 61440705), (3, 20480235), (5, 12288141), (9, 6826745), (15, 4096047), (23, 2671335), (29, 2118645), (45, 1365349), (69, 890445), (87, 706215), (89, 690345), (115, 534267), (145, 423729), (207, 296815), (261, 235405), (267, 230115), (345, 178089), (435, 141243), (445, 138069), (529, 116145), (667, 92115), (801, 76705), (1035, 59363), (1305, 47081), (1335, 46023), (1587, 38715), (2001, 30705), (2047, 30015), (2581, 23805), (2645, 23229), (3335, 18423), (4005, 15341), (4761, 12905), (6003, 10235), (6141, 10005), (7743, 7935)]