31838240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 144

約数和(自身を含む): 91010304

約数和(自身を除く): 59172064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 131, 140, 155, 160, 196, 217, 224, 245, 248, 262, 280, 310, 392, 434, 490, 496, 524, 560, 620, 655, 784, 868, 917, 980, 992, 1048, 1085, 1120, 1240, 1310, 1519, 1568, 1736, 1834, 1960, 2096, 2170, 2480, 2620, 3038, 3472, 3668, 3920, 4061, 4192, 4340, 4585, 4960, 5240, 6076, 6419, 6944, 7336, 7595, 7840, 8122, 8680, 9170, 10480, 12152, 12838, 14672, 15190, 16244, 17360, 18340, 20305, 20960, 24304, 25676, 28427, 29344, 30380, 32095, 32488, 34720, 36680, 40610, 48608, 51352, 56854, 60760, 64190, 64976, 73360, 81220, 102704, 113708, 121520, 128380, 129952, 142135, 146720, 162440, 198989, 205408, 227416, 243040, 256760, 284270, 324880, 397978, 454832, 513520, 568540, 649760, 795956, 909664, 994945, 1027040, 1137080, 1591912, 1989890, 2274160, 3183824, 3979780, 4548320, 6367648, 7959560, 15919120, 31838240]

約数ペア:

[(1, 31838240), (2, 15919120), (4, 7959560), (5, 6367648), (7, 4548320), (8, 3979780), (10, 3183824), (14, 2274160), (16, 1989890), (20, 1591912), (28, 1137080), (31, 1027040), (32, 994945), (35, 909664), (40, 795956), (49, 649760), (56, 568540), (62, 513520), (70, 454832), (80, 397978), (98, 324880), (112, 284270), (124, 256760), (131, 243040), (140, 227416), (155, 205408), (160, 198989), (196, 162440), (217, 146720), (224, 142135), (245, 129952), (248, 128380), (262, 121520), (280, 113708), (310, 102704), (392, 81220), (434, 73360), (490, 64976), (496, 64190), (524, 60760), (560, 56854), (620, 51352), (655, 48608), (784, 40610), (868, 36680), (917, 34720), (980, 32488), (992, 32095), (1048, 30380), (1085, 29344), (1120, 28427), (1240, 25676), (1310, 24304), (1519, 20960), (1568, 20305), (1736, 18340), (1834, 17360), (1960, 16244), (2096, 15190), (2170, 14672), (2480, 12838), (2620, 12152), (3038, 10480), (3472, 9170), (3668, 8680), (3920, 8122), (4061, 7840), (4192, 7595), (4340, 7336), (4585, 6944), (4960, 6419), (5240, 6076)]