38400320

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 168

約数和(自身を含む): 111191040

約数和(自身を除く): 72790720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 79, 80, 98, 112, 124, 140, 155, 158, 160, 196, 217, 224, 245, 248, 280, 310, 316, 320, 392, 395, 434, 448, 490, 496, 553, 560, 620, 632, 784, 790, 868, 980, 992, 1085, 1106, 1120, 1240, 1264, 1519, 1568, 1580, 1736, 1960, 1984, 2170, 2212, 2240, 2449, 2480, 2528, 2765, 3038, 3136, 3160, 3472, 3871, 3920, 4340, 4424, 4898, 4960, 5056, 5530, 6076, 6320, 6944, 7595, 7742, 7840, 8680, 8848, 9796, 9920, 11060, 12152, 12245, 12640, 13888, 15190, 15484, 15680, 17143, 17360, 17696, 19355, 19592, 22120, 24304, 24490, 25280, 30380, 30968, 34286, 34720, 35392, 38710, 39184, 44240, 48608, 48980, 60760, 61936, 68572, 69440, 77420, 78368, 85715, 88480, 97216, 97960, 120001, 121520, 123872, 137144, 154840, 156736, 171430, 176960, 195920, 240002, 243040, 247744, 274288, 309680, 342860, 391840, 480004, 486080, 548576, 600005, 619360, 685720, 783680, 960008, 1097152, 1200010, 1238720, 1371440, 1920016, 2400020, 2742880, 3840032, 4800040, 5485760, 7680064, 9600080, 19200160, 38400320]

約数ペア:

[(1, 38400320), (2, 19200160), (4, 9600080), (5, 7680064), (7, 5485760), (8, 4800040), (10, 3840032), (14, 2742880), (16, 2400020), (20, 1920016), (28, 1371440), (31, 1238720), (32, 1200010), (35, 1097152), (40, 960008), (49, 783680), (56, 685720), (62, 619360), (64, 600005), (70, 548576), (79, 486080), (80, 480004), (98, 391840), (112, 342860), (124, 309680), (140, 274288), (155, 247744), (158, 243040), (160, 240002), (196, 195920), (217, 176960), (224, 171430), (245, 156736), (248, 154840), (280, 137144), (310, 123872), (316, 121520), (320, 120001), (392, 97960), (395, 97216), (434, 88480), (448, 85715), (490, 78368), (496, 77420), (553, 69440), (560, 68572), (620, 61936), (632, 60760), (784, 48980), (790, 48608), (868, 44240), (980, 39184), (992, 38710), (1085, 35392), (1106, 34720), (1120, 34286), (1240, 30968), (1264, 30380), (1519, 25280), (1568, 24490), (1580, 24304), (1736, 22120), (1960, 19592), (1984, 19355), (2170, 17696), (2212, 17360), (2240, 17143), (2449, 15680), (2480, 15484), (2528, 15190), (2765, 13888), (3038, 12640), (3136, 12245), (3160, 12152), (3472, 11060), (3871, 9920), (3920, 9796), (4340, 8848), (4424, 8680), (4898, 7840), (4960, 7742), (5056, 7595), (5530, 6944), (6076, 6320)]