28172060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 77565600

約数和(自身を除く): 49393540

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 49, 68, 70, 76, 85, 89, 95, 98, 119, 133, 140, 170, 178, 190, 196, 238, 245, 266, 323, 340, 356, 380, 445, 476, 490, 532, 595, 623, 646, 665, 833, 890, 931, 980, 1190, 1246, 1292, 1330, 1513, 1615, 1666, 1691, 1780, 1862, 2261, 2380, 2492, 2660, 3026, 3115, 3230, 3332, 3382, 3724, 4165, 4361, 4522, 4655, 6052, 6230, 6460, 6764, 7565, 8330, 8455, 8722, 9044, 9310, 10591, 11305, 11837, 12460, 15130, 15827, 16660, 16910, 17444, 18620, 21182, 21805, 22610, 23674, 28747, 30260, 31654, 33820, 42364, 43610, 45220, 47348, 52955, 57494, 59185, 63308, 74137, 79135, 82859, 87220, 105910, 114988, 118370, 143735, 148274, 158270, 165718, 201229, 211820, 236740, 287470, 296548, 316540, 331436, 370685, 402458, 414295, 574940, 741370, 804916, 828590, 1006145, 1408603, 1482740, 1657180, 2012290, 2817206, 4024580, 5634412, 7043015, 14086030, 28172060]

約数ペア:

[(1, 28172060), (2, 14086030), (4, 7043015), (5, 5634412), (7, 4024580), (10, 2817206), (14, 2012290), (17, 1657180), (19, 1482740), (20, 1408603), (28, 1006145), (34, 828590), (35, 804916), (38, 741370), (49, 574940), (68, 414295), (70, 402458), (76, 370685), (85, 331436), (89, 316540), (95, 296548), (98, 287470), (119, 236740), (133, 211820), (140, 201229), (170, 165718), (178, 158270), (190, 148274), (196, 143735), (238, 118370), (245, 114988), (266, 105910), (323, 87220), (340, 82859), (356, 79135), (380, 74137), (445, 63308), (476, 59185), (490, 57494), (532, 52955), (595, 47348), (623, 45220), (646, 43610), (665, 42364), (833, 33820), (890, 31654), (931, 30260), (980, 28747), (1190, 23674), (1246, 22610), (1292, 21805), (1330, 21182), (1513, 18620), (1615, 17444), (1666, 16910), (1691, 16660), (1780, 15827), (1862, 15130), (2261, 12460), (2380, 11837), (2492, 11305), (2660, 10591), (3026, 9310), (3115, 9044), (3230, 8722), (3332, 8455), (3382, 8330), (3724, 7565), (4165, 6764), (4361, 6460), (4522, 6230), (4655, 6052)]