388306880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{347}}^1$

素因数の和:646

約数の個数: 112

約数和(自身を含む): 1002365280

約数和(自身を除く): 614058400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 269, 320, 347, 416, 520, 538, 694, 832, 1040, 1076, 1345, 1388, 1735, 2080, 2152, 2690, 2776, 3470, 3497, 4160, 4304, 4511, 5380, 5552, 6940, 6994, 8608, 9022, 10760, 11104, 13880, 13988, 17216, 17485, 18044, 21520, 22208, 22555, 27760, 27976, 34970, 36088, 43040, 45110, 55520, 55952, 69940, 72176, 86080, 90220, 93343, 111040, 111904, 139880, 144352, 180440, 186686, 223808, 279760, 288704, 360880, 373372, 466715, 559520, 721760, 746744, 933430, 1119040, 1213459, 1443520, 1493488, 1866860, 2426918, 2986976, 3733720, 4853836, 5973952, 6067295, 7467440, 9707672, 12134590, 14934880, 19415344, 24269180, 29869760, 38830688, 48538360, 77661376, 97076720, 194153440, 388306880]

約数ペア:

[(1, 388306880), (2, 194153440), (4, 97076720), (5, 77661376), (8, 48538360), (10, 38830688), (13, 29869760), (16, 24269180), (20, 19415344), (26, 14934880), (32, 12134590), (40, 9707672), (52, 7467440), (64, 6067295), (65, 5973952), (80, 4853836), (104, 3733720), (130, 2986976), (160, 2426918), (208, 1866860), (260, 1493488), (269, 1443520), (320, 1213459), (347, 1119040), (416, 933430), (520, 746744), (538, 721760), (694, 559520), (832, 466715), (1040, 373372), (1076, 360880), (1345, 288704), (1388, 279760), (1735, 223808), (2080, 186686), (2152, 180440), (2690, 144352), (2776, 139880), (3470, 111904), (3497, 111040), (4160, 93343), (4304, 90220), (4511, 86080), (5380, 72176), (5552, 69940), (6940, 55952), (6994, 55520), (8608, 45110), (9022, 43040), (10760, 36088), (11104, 34970), (13880, 27976), (13988, 27760), (17216, 22555), (17485, 22208), (18044, 21520)]