31200260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 85800960

約数和(自身を除く): 54600700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 79, 91, 98, 124, 130, 140, 155, 158, 182, 196, 217, 245, 260, 310, 316, 364, 395, 403, 434, 455, 490, 553, 620, 637, 790, 806, 868, 910, 980, 1027, 1085, 1106, 1274, 1519, 1580, 1612, 1820, 2015, 2054, 2170, 2212, 2449, 2548, 2765, 2821, 3038, 3185, 3871, 4030, 4108, 4340, 4898, 5135, 5530, 5642, 6076, 6370, 7189, 7595, 7742, 8060, 9796, 10270, 11060, 11284, 12245, 12740, 14105, 14378, 15190, 15484, 17143, 19355, 19747, 20540, 24490, 28210, 28756, 30380, 31837, 34286, 35945, 38710, 39494, 48980, 50323, 56420, 63674, 68572, 71890, 77420, 78988, 85715, 98735, 100646, 120001, 127348, 143780, 159185, 171430, 197470, 201292, 222859, 240002, 251615, 318370, 342860, 394940, 445718, 480004, 503230, 600005, 636740, 891436, 1006460, 1114295, 1200010, 1560013, 2228590, 2400020, 3120026, 4457180, 6240052, 7800065, 15600130, 31200260]

約数ペア:

[(1, 31200260), (2, 15600130), (4, 7800065), (5, 6240052), (7, 4457180), (10, 3120026), (13, 2400020), (14, 2228590), (20, 1560013), (26, 1200010), (28, 1114295), (31, 1006460), (35, 891436), (49, 636740), (52, 600005), (62, 503230), (65, 480004), (70, 445718), (79, 394940), (91, 342860), (98, 318370), (124, 251615), (130, 240002), (140, 222859), (155, 201292), (158, 197470), (182, 171430), (196, 159185), (217, 143780), (245, 127348), (260, 120001), (310, 100646), (316, 98735), (364, 85715), (395, 78988), (403, 77420), (434, 71890), (455, 68572), (490, 63674), (553, 56420), (620, 50323), (637, 48980), (790, 39494), (806, 38710), (868, 35945), (910, 34286), (980, 31837), (1027, 30380), (1085, 28756), (1106, 28210), (1274, 24490), (1519, 20540), (1580, 19747), (1612, 19355), (1820, 17143), (2015, 15484), (2054, 15190), (2170, 14378), (2212, 14105), (2449, 12740), (2548, 12245), (2765, 11284), (2821, 11060), (3038, 10270), (3185, 9796), (3871, 8060), (4030, 7742), (4108, 7595), (4340, 7189), (4898, 6370), (5135, 6076), (5530, 5642)]