18240285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 17886435

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 41, 57, 95, 105, 123, 133, 205, 223, 285, 287, 399, 615, 665, 669, 779, 861, 1115, 1435, 1561, 1995, 2337, 3345, 3895, 4237, 4305, 4683, 5453, 7805, 9143, 11685, 12711, 16359, 21185, 23415, 27265, 27429, 29659, 45715, 63555, 64001, 81795, 88977, 137145, 148295, 173717, 192003, 320005, 444885, 521151, 868585, 960015, 1216019, 2605755, 3648057, 6080095, 18240285]

約数ペア:

[(1, 18240285), (3, 6080095), (5, 3648057), (7, 2605755), (15, 1216019), (19, 960015), (21, 868585), (35, 521151), (41, 444885), (57, 320005), (95, 192003), (105, 173717), (123, 148295), (133, 137145), (205, 88977), (223, 81795), (285, 64001), (287, 63555), (399, 45715), (615, 29659), (665, 27429), (669, 27265), (779, 23415), (861, 21185), (1115, 16359), (1435, 12711), (1561, 11685), (1995, 9143), (2337, 7805), (3345, 5453), (3895, 4683), (4237, 4305)]