320443280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1024

約数の個数: 80

約数和(自身を含む): 774902784

約数和(自身を除く): 454459504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 157, 248, 310, 314, 496, 620, 628, 785, 823, 1240, 1256, 1570, 1646, 2480, 2512, 3140, 3292, 4115, 4867, 6280, 6584, 8230, 9734, 12560, 13168, 16460, 19468, 24335, 25513, 32920, 38936, 48670, 51026, 65840, 77872, 97340, 102052, 127565, 129211, 194680, 204104, 255130, 258422, 389360, 408208, 510260, 516844, 646055, 1020520, 1033688, 1292110, 2041040, 2067376, 2584220, 4005541, 5168440, 8011082, 10336880, 16022164, 20027705, 32044328, 40055410, 64088656, 80110820, 160221640, 320443280]

約数ペア:

[(1, 320443280), (2, 160221640), (4, 80110820), (5, 64088656), (8, 40055410), (10, 32044328), (16, 20027705), (20, 16022164), (31, 10336880), (40, 8011082), (62, 5168440), (80, 4005541), (124, 2584220), (155, 2067376), (157, 2041040), (248, 1292110), (310, 1033688), (314, 1020520), (496, 646055), (620, 516844), (628, 510260), (785, 408208), (823, 389360), (1240, 258422), (1256, 255130), (1570, 204104), (1646, 194680), (2480, 129211), (2512, 127565), (3140, 102052), (3292, 97340), (4115, 77872), (4867, 65840), (6280, 51026), (6584, 48670), (8230, 38936), (9734, 32920), (12560, 25513), (13168, 24335), (16460, 19468)]