2198719990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{1423}}^1$

素因数の和:1657

約数の個数: 64

約数和(自身を含む): 4290796800

約数和(自身を除く): 2092076810

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 149, 170, 298, 305, 610, 745, 1037, 1423, 1490, 2074, 2533, 2846, 5066, 5185, 7115, 9089, 10370, 12665, 14230, 18178, 24191, 25330, 45445, 48382, 86803, 90890, 120955, 154513, 173606, 212027, 241910, 309026, 424054, 434015, 772565, 868030, 1060135, 1475651, 1545130, 2120270, 2951302, 3604459, 7208918, 7378255, 12933647, 14756510, 18022295, 25867294, 36044590, 64668235, 129336470, 219871999, 439743998, 1099359995, 2198719990]

約数ペア:

[(1, 2198719990), (2, 1099359995), (5, 439743998), (10, 219871999), (17, 129336470), (34, 64668235), (61, 36044590), (85, 25867294), (122, 18022295), (149, 14756510), (170, 12933647), (298, 7378255), (305, 7208918), (610, 3604459), (745, 2951302), (1037, 2120270), (1423, 1545130), (1490, 1475651), (2074, 1060135), (2533, 868030), (2846, 772565), (5066, 434015), (5185, 424054), (7115, 309026), (9089, 241910), (10370, 212027), (12665, 173606), (14230, 154513), (18178, 120955), (24191, 90890), (25330, 86803), (45445, 48382)]