179997160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 485222400

約数和(自身を除く): 305225240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 89, 124, 140, 155, 178, 217, 233, 248, 280, 310, 356, 434, 445, 466, 620, 623, 712, 868, 890, 932, 1085, 1165, 1240, 1246, 1631, 1736, 1780, 1864, 2170, 2330, 2492, 2759, 3115, 3262, 3560, 4340, 4660, 4984, 5518, 6230, 6524, 7223, 8155, 8680, 9320, 11036, 12460, 13048, 13795, 14446, 16310, 19313, 20737, 22072, 24920, 27590, 28892, 32620, 36115, 38626, 41474, 50561, 55180, 57784, 65240, 72230, 77252, 82948, 96565, 101122, 103685, 110360, 144460, 145159, 154504, 165896, 193130, 202244, 207370, 252805, 288920, 290318, 386260, 404488, 414740, 505610, 580636, 642847, 725795, 772520, 829480, 1011220, 1161272, 1285694, 1451590, 2022440, 2571388, 2903180, 3214235, 4499929, 5142776, 5806360, 6428470, 8999858, 12856940, 17999716, 22499645, 25713880, 35999432, 44999290, 89998580, 179997160]

約数ペア:

[(1, 179997160), (2, 89998580), (4, 44999290), (5, 35999432), (7, 25713880), (8, 22499645), (10, 17999716), (14, 12856940), (20, 8999858), (28, 6428470), (31, 5806360), (35, 5142776), (40, 4499929), (56, 3214235), (62, 2903180), (70, 2571388), (89, 2022440), (124, 1451590), (140, 1285694), (155, 1161272), (178, 1011220), (217, 829480), (233, 772520), (248, 725795), (280, 642847), (310, 580636), (356, 505610), (434, 414740), (445, 404488), (466, 386260), (620, 290318), (623, 288920), (712, 252805), (868, 207370), (890, 202244), (932, 193130), (1085, 165896), (1165, 154504), (1240, 145159), (1246, 144460), (1631, 110360), (1736, 103685), (1780, 101122), (1864, 96565), (2170, 82948), (2330, 77252), (2492, 72230), (2759, 65240), (3115, 57784), (3262, 55180), (3560, 50561), (4340, 41474), (4660, 38626), (4984, 36115), (5518, 32620), (6230, 28892), (6524, 27590), (7223, 24920), (8155, 22072), (8680, 20737), (9320, 19313), (11036, 16310), (12460, 14446), (13048, 13795)]