164435440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3677}}^1$

素因数の和:3746

約数の個数: 80

約数和(自身を含む): 421410528

約数和(自身を除く): 256975088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 3677, 4472, 5590, 7354, 8944, 11180, 14708, 18385, 22360, 29416, 36770, 44720, 47801, 58832, 73540, 95602, 147080, 158111, 191204, 239005, 294160, 316222, 382408, 478010, 632444, 764816, 790555, 956020, 1264888, 1581110, 1912040, 2055443, 2529776, 3162220, 3824080, 4110886, 6324440, 8221772, 10277215, 12648880, 16443544, 20554430, 32887088, 41108860, 82217720, 164435440]

約数ペア:

[(1, 164435440), (2, 82217720), (4, 41108860), (5, 32887088), (8, 20554430), (10, 16443544), (13, 12648880), (16, 10277215), (20, 8221772), (26, 6324440), (40, 4110886), (43, 3824080), (52, 3162220), (65, 2529776), (80, 2055443), (86, 1912040), (104, 1581110), (130, 1264888), (172, 956020), (208, 790555), (215, 764816), (260, 632444), (344, 478010), (430, 382408), (520, 316222), (559, 294160), (688, 239005), (860, 191204), (1040, 158111), (1118, 147080), (1720, 95602), (2236, 73540), (2795, 58832), (3440, 47801), (3677, 44720), (4472, 36770), (5590, 29416), (7354, 22360), (8944, 18385), (11180, 14708)]