19503540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:718

約数の個数: 144

約数和(自身を含む): 70656768

約数和(自身を除く): 51153228

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 673, 690, 805, 828, 966, 1035, 1260, 1346, 1380, 1449, 1610, 1932, 2019, 2070, 2415, 2692, 2898, 3220, 3365, 4038, 4140, 4711, 4830, 5796, 6057, 6730, 7245, 8076, 9422, 9660, 10095, 12114, 13460, 14133, 14490, 15479, 18844, 20190, 23555, 24228, 28266, 28980, 30285, 30958, 40380, 42399, 46437, 47110, 56532, 60570, 61916, 70665, 77395, 84798, 92874, 94220, 108353, 121140, 139311, 141330, 154790, 169596, 185748, 211995, 216706, 232185, 278622, 282660, 309580, 325059, 423990, 433412, 464370, 541765, 557244, 650118, 696555, 847980, 928740, 975177, 1083530, 1300236, 1393110, 1625295, 1950354, 2167060, 2786220, 3250590, 3900708, 4875885, 6501180, 9751770, 19503540]

約数ペア:

[(1, 19503540), (2, 9751770), (3, 6501180), (4, 4875885), (5, 3900708), (6, 3250590), (7, 2786220), (9, 2167060), (10, 1950354), (12, 1625295), (14, 1393110), (15, 1300236), (18, 1083530), (20, 975177), (21, 928740), (23, 847980), (28, 696555), (30, 650118), (35, 557244), (36, 541765), (42, 464370), (45, 433412), (46, 423990), (60, 325059), (63, 309580), (69, 282660), (70, 278622), (84, 232185), (90, 216706), (92, 211995), (105, 185748), (115, 169596), (126, 154790), (138, 141330), (140, 139311), (161, 121140), (180, 108353), (207, 94220), (210, 92874), (230, 84798), (252, 77395), (276, 70665), (315, 61916), (322, 60570), (345, 56532), (414, 47110), (420, 46437), (460, 42399), (483, 40380), (630, 30958), (644, 30285), (673, 28980), (690, 28266), (805, 24228), (828, 23555), (966, 20190), (1035, 18844), (1260, 15479), (1346, 14490), (1380, 14133), (1449, 13460), (1610, 12114), (1932, 10095), (2019, 9660), (2070, 9422), (2415, 8076), (2692, 7245), (2898, 6730), (3220, 6057), (3365, 5796), (4038, 4830), (4140, 4711)]