31100720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 90470400

約数和(自身を除く): 59369680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 37, 38, 40, 56, 70, 74, 76, 79, 80, 95, 112, 133, 140, 148, 152, 158, 185, 190, 259, 266, 280, 296, 304, 316, 370, 380, 395, 518, 532, 553, 560, 592, 632, 665, 703, 740, 760, 790, 1036, 1064, 1106, 1264, 1295, 1330, 1406, 1480, 1501, 1520, 1580, 2072, 2128, 2212, 2590, 2660, 2765, 2812, 2923, 2960, 3002, 3160, 3515, 4144, 4424, 4921, 5180, 5320, 5530, 5624, 5846, 6004, 6320, 7030, 7505, 8848, 9842, 10360, 10507, 10640, 11060, 11248, 11692, 12008, 14060, 14615, 15010, 19684, 20461, 20720, 21014, 22120, 23384, 24016, 24605, 28120, 29230, 30020, 39368, 40922, 42028, 44240, 46768, 49210, 52535, 55537, 56240, 58460, 60040, 78736, 81844, 84056, 98420, 102305, 105070, 111074, 116920, 120080, 163688, 168112, 196840, 204610, 210140, 222148, 233840, 277685, 327376, 388759, 393680, 409220, 420280, 444296, 555370, 777518, 818440, 840560, 888592, 1110740, 1555036, 1636880, 1943795, 2221480, 3110072, 3887590, 4442960, 6220144, 7775180, 15550360, 31100720]

約数ペア:

[(1, 31100720), (2, 15550360), (4, 7775180), (5, 6220144), (7, 4442960), (8, 3887590), (10, 3110072), (14, 2221480), (16, 1943795), (19, 1636880), (20, 1555036), (28, 1110740), (35, 888592), (37, 840560), (38, 818440), (40, 777518), (56, 555370), (70, 444296), (74, 420280), (76, 409220), (79, 393680), (80, 388759), (95, 327376), (112, 277685), (133, 233840), (140, 222148), (148, 210140), (152, 204610), (158, 196840), (185, 168112), (190, 163688), (259, 120080), (266, 116920), (280, 111074), (296, 105070), (304, 102305), (316, 98420), (370, 84056), (380, 81844), (395, 78736), (518, 60040), (532, 58460), (553, 56240), (560, 55537), (592, 52535), (632, 49210), (665, 46768), (703, 44240), (740, 42028), (760, 40922), (790, 39368), (1036, 30020), (1064, 29230), (1106, 28120), (1264, 24605), (1295, 24016), (1330, 23384), (1406, 22120), (1480, 21014), (1501, 20720), (1520, 20461), (1580, 19684), (2072, 15010), (2128, 14615), (2212, 14060), (2590, 12008), (2660, 11692), (2765, 11248), (2812, 11060), (2923, 10640), (2960, 10507), (3002, 10360), (3160, 9842), (3515, 8848), (4144, 7505), (4424, 7030), (4921, 6320), (5180, 6004), (5320, 5846), (5530, 5624)]