156720072920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1\times {\mathrm{43943}}^1$

素因数の和:44664

約数の個数: 64

約数和(自身を含む): 355440165120

約数和(自身を除く): 198720092200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 547, 652, 815, 1094, 1304, 1630, 2188, 2735, 3260, 4376, 5470, 6520, 10940, 21880, 43943, 87886, 89161, 175772, 178322, 219715, 351544, 356644, 439430, 445805, 713288, 878860, 891610, 1757720, 1783220, 3566440, 7162709, 14325418, 24036821, 28650836, 35813545, 48073642, 57301672, 71627090, 96147284, 120184105, 143254180, 192294568, 240368210, 286508360, 480736420, 961472840, 3918001823, 7836003646, 15672007292, 19590009115, 31344014584, 39180018230, 78360036460, 156720072920]

約数ペア:

[(1, 156720072920), (2, 78360036460), (4, 39180018230), (5, 31344014584), (8, 19590009115), (10, 15672007292), (20, 7836003646), (40, 3918001823), (163, 961472840), (326, 480736420), (547, 286508360), (652, 240368210), (815, 192294568), (1094, 143254180), (1304, 120184105), (1630, 96147284), (2188, 71627090), (2735, 57301672), (3260, 48073642), (4376, 35813545), (5470, 28650836), (6520, 24036821), (10940, 14325418), (21880, 7162709), (43943, 3566440), (87886, 1783220), (89161, 1757720), (175772, 891610), (178322, 878860), (219715, 713288), (351544, 445805), (356644, 439430)]