8291240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 20120400

約数和(自身を除く): 11829160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 137, 170, 178, 274, 340, 356, 445, 548, 680, 685, 712, 890, 1096, 1370, 1513, 1780, 2329, 2740, 3026, 3560, 4658, 5480, 6052, 7565, 9316, 11645, 12104, 12193, 15130, 18632, 23290, 24386, 30260, 46580, 48772, 60520, 60965, 93160, 97544, 121930, 207281, 243860, 414562, 487720, 829124, 1036405, 1658248, 2072810, 4145620, 8291240]

約数ペア:

[(1, 8291240), (2, 4145620), (4, 2072810), (5, 1658248), (8, 1036405), (10, 829124), (17, 487720), (20, 414562), (34, 243860), (40, 207281), (68, 121930), (85, 97544), (89, 93160), (136, 60965), (137, 60520), (170, 48772), (178, 46580), (274, 30260), (340, 24386), (356, 23290), (445, 18632), (548, 15130), (680, 12193), (685, 12104), (712, 11645), (890, 9316), (1096, 7565), (1370, 6052), (1513, 5480), (1780, 4658), (2329, 3560), (2740, 3026)]