161963880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^3$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 534643200

約数和(自身を除く): 372679320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 47, 52, 60, 65, 78, 94, 104, 120, 130, 141, 156, 188, 195, 235, 260, 282, 312, 376, 390, 470, 520, 564, 611, 705, 780, 940, 1128, 1222, 1410, 1560, 1833, 1880, 2209, 2444, 2820, 3055, 3666, 4418, 4888, 5640, 6110, 6627, 7332, 8836, 9165, 11045, 12220, 13254, 14664, 17672, 18330, 22090, 24440, 26508, 28717, 33135, 36660, 44180, 53016, 57434, 66270, 73320, 86151, 88360, 103823, 114868, 132540, 143585, 172302, 207646, 229736, 265080, 287170, 311469, 344604, 415292, 430755, 519115, 574340, 622938, 689208, 830584, 861510, 1038230, 1148680, 1245876, 1349699, 1557345, 1723020, 2076460, 2491752, 2699398, 3114690, 3446040, 4049097, 4152920, 5398796, 6229380, 6748495, 8098194, 10797592, 12458760, 13496990, 16196388, 20245485, 26993980, 32392776, 40490970, 53987960, 80981940, 161963880]

約数ペア:

[(1, 161963880), (2, 80981940), (3, 53987960), (4, 40490970), (5, 32392776), (6, 26993980), (8, 20245485), (10, 16196388), (12, 13496990), (13, 12458760), (15, 10797592), (20, 8098194), (24, 6748495), (26, 6229380), (30, 5398796), (39, 4152920), (40, 4049097), (47, 3446040), (52, 3114690), (60, 2699398), (65, 2491752), (78, 2076460), (94, 1723020), (104, 1557345), (120, 1349699), (130, 1245876), (141, 1148680), (156, 1038230), (188, 861510), (195, 830584), (235, 689208), (260, 622938), (282, 574340), (312, 519115), (376, 430755), (390, 415292), (470, 344604), (520, 311469), (564, 287170), (611, 265080), (705, 229736), (780, 207646), (940, 172302), (1128, 143585), (1222, 132540), (1410, 114868), (1560, 103823), (1833, 88360), (1880, 86151), (2209, 73320), (2444, 66270), (2820, 57434), (3055, 53016), (3666, 44180), (4418, 36660), (4888, 33135), (5640, 28717), (6110, 26508), (6627, 24440), (7332, 22090), (8836, 18330), (9165, 17672), (11045, 14664), (12220, 13254)]