7242990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 18627840

約数和(自身を除く): 11384850

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 97, 114, 131, 190, 194, 262, 285, 291, 393, 485, 570, 582, 655, 786, 970, 1310, 1455, 1843, 1965, 2489, 2910, 3686, 3930, 4978, 5529, 7467, 9215, 11058, 12445, 12707, 14934, 18430, 24890, 25414, 27645, 37335, 38121, 55290, 63535, 74670, 76242, 127070, 190605, 241433, 381210, 482866, 724299, 1207165, 1448598, 2414330, 3621495, 7242990]

約数ペア:

[(1, 7242990), (2, 3621495), (3, 2414330), (5, 1448598), (6, 1207165), (10, 724299), (15, 482866), (19, 381210), (30, 241433), (38, 190605), (57, 127070), (95, 76242), (97, 74670), (114, 63535), (131, 55290), (190, 38121), (194, 37335), (262, 27645), (285, 25414), (291, 24890), (393, 18430), (485, 14934), (570, 12707), (582, 12445), (655, 11058), (786, 9215), (970, 7467), (1310, 5529), (1455, 4978), (1843, 3930), (1965, 3686), (2489, 2910)]