393291280

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 930659184

約数和(自身を除く): 537367904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 173, 181, 314, 346, 362, 628, 692, 724, 785, 865, 905, 1256, 1384, 1448, 1570, 1730, 1810, 2512, 2768, 2896, 3140, 3460, 3620, 6280, 6920, 7240, 12560, 13840, 14480, 27161, 28417, 31313, 54322, 56834, 62626, 108644, 113668, 125252, 135805, 142085, 156565, 217288, 227336, 250504, 271610, 284170, 313130, 434576, 454672, 501008, 543220, 568340, 626260, 1086440, 1136680, 1252520, 2172880, 2273360, 2505040, 4916141, 9832282, 19664564, 24580705, 39329128, 49161410, 78658256, 98322820, 196645640, 393291280]

約数ペア:

[(1, 393291280), (2, 196645640), (4, 98322820), (5, 78658256), (8, 49161410), (10, 39329128), (16, 24580705), (20, 19664564), (40, 9832282), (80, 4916141), (157, 2505040), (173, 2273360), (181, 2172880), (314, 1252520), (346, 1136680), (362, 1086440), (628, 626260), (692, 568340), (724, 543220), (785, 501008), (865, 454672), (905, 434576), (1256, 313130), (1384, 284170), (1448, 271610), (1570, 250504), (1730, 227336), (1810, 217288), (2512, 156565), (2768, 142085), (2896, 135805), (3140, 125252), (3460, 113668), (3620, 108644), (6280, 62626), (6920, 56834), (7240, 54322), (12560, 31313), (13840, 28417), (14480, 27161)]