2080991720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{683}}^1$

素因数の和:943

約数の個数: 96

約数和(自身を含む): 4972324320

約数和(自身を除く): 2891332600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 211, 361, 380, 422, 683, 722, 760, 844, 1055, 1366, 1444, 1688, 1805, 2110, 2732, 2888, 3415, 3610, 4009, 4220, 5464, 6830, 7220, 8018, 8440, 12977, 13660, 14440, 16036, 20045, 25954, 27320, 32072, 40090, 51908, 64885, 76171, 80180, 103816, 129770, 144113, 152342, 160360, 246563, 259540, 288226, 304684, 380855, 493126, 519080, 576452, 609368, 720565, 761710, 986252, 1152904, 1232815, 1441130, 1523420, 1972504, 2465630, 2738147, 2882260, 3046840, 4931260, 5476294, 5764520, 9862520, 10952588, 13690735, 21905176, 27381470, 52024793, 54762940, 104049586, 109525880, 208099172, 260123965, 416198344, 520247930, 1040495860, 2080991720]

約数ペア:

[(1, 2080991720), (2, 1040495860), (4, 520247930), (5, 416198344), (8, 260123965), (10, 208099172), (19, 109525880), (20, 104049586), (38, 54762940), (40, 52024793), (76, 27381470), (95, 21905176), (152, 13690735), (190, 10952588), (211, 9862520), (361, 5764520), (380, 5476294), (422, 4931260), (683, 3046840), (722, 2882260), (760, 2738147), (844, 2465630), (1055, 1972504), (1366, 1523420), (1444, 1441130), (1688, 1232815), (1805, 1152904), (2110, 986252), (2732, 761710), (2888, 720565), (3415, 609368), (3610, 576452), (4009, 519080), (4220, 493126), (5464, 380855), (6830, 304684), (7220, 288226), (8018, 259540), (8440, 246563), (12977, 160360), (13660, 152342), (14440, 144113), (16036, 129770), (20045, 103816), (25954, 80180), (27320, 76171), (32072, 64885), (40090, 51908)]