20593720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 57600000

約数和(自身を除く): 37006280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 79, 95, 98, 133, 140, 152, 158, 190, 196, 245, 266, 280, 316, 343, 380, 392, 395, 490, 532, 553, 632, 665, 686, 760, 790, 931, 980, 1064, 1106, 1330, 1372, 1501, 1580, 1715, 1862, 1960, 2212, 2660, 2744, 2765, 3002, 3160, 3430, 3724, 3871, 4424, 4655, 5320, 5530, 6004, 6517, 6860, 7448, 7505, 7742, 9310, 10507, 11060, 12008, 13034, 13720, 15010, 15484, 18620, 19355, 21014, 22120, 26068, 27097, 30020, 30968, 32585, 37240, 38710, 42028, 52136, 52535, 54194, 60040, 65170, 73549, 77420, 84056, 105070, 108388, 130340, 135485, 147098, 154840, 210140, 216776, 260680, 270970, 294196, 367745, 420280, 514843, 541940, 588392, 735490, 1029686, 1083880, 1470980, 2059372, 2574215, 2941960, 4118744, 5148430, 10296860, 20593720]

約数ペア:

[(1, 20593720), (2, 10296860), (4, 5148430), (5, 4118744), (7, 2941960), (8, 2574215), (10, 2059372), (14, 1470980), (19, 1083880), (20, 1029686), (28, 735490), (35, 588392), (38, 541940), (40, 514843), (49, 420280), (56, 367745), (70, 294196), (76, 270970), (79, 260680), (95, 216776), (98, 210140), (133, 154840), (140, 147098), (152, 135485), (158, 130340), (190, 108388), (196, 105070), (245, 84056), (266, 77420), (280, 73549), (316, 65170), (343, 60040), (380, 54194), (392, 52535), (395, 52136), (490, 42028), (532, 38710), (553, 37240), (632, 32585), (665, 30968), (686, 30020), (760, 27097), (790, 26068), (931, 22120), (980, 21014), (1064, 19355), (1106, 18620), (1330, 15484), (1372, 15010), (1501, 13720), (1580, 13034), (1715, 12008), (1862, 11060), (1960, 10507), (2212, 9310), (2660, 7742), (2744, 7505), (2765, 7448), (3002, 6860), (3160, 6517), (3430, 6004), (3724, 5530), (3871, 5320), (4424, 4655)]