405172040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1409}}^1$

素因数の和:1519

約数の個数: 128

約数和(自身を含む): 1137024000

約数和(自身を除く): 731851960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 130, 140, 158, 182, 260, 280, 316, 364, 395, 455, 520, 553, 632, 728, 790, 910, 1027, 1106, 1409, 1580, 1820, 2054, 2212, 2765, 2818, 3160, 3640, 4108, 4424, 5135, 5530, 5636, 7045, 7189, 8216, 9863, 10270, 11060, 11272, 14090, 14378, 18317, 19726, 20540, 22120, 28180, 28756, 35945, 36634, 39452, 41080, 49315, 56360, 57512, 71890, 73268, 78904, 91585, 98630, 111311, 128219, 143780, 146536, 183170, 197260, 222622, 256438, 287560, 366340, 394520, 445244, 512876, 556555, 641095, 732680, 779177, 890488, 1025752, 1113110, 1282190, 1447043, 1558354, 2226220, 2564380, 2894086, 3116708, 3895885, 4452440, 5128760, 5788172, 6233416, 7235215, 7791770, 10129301, 11576344, 14470430, 15583540, 20258602, 28940860, 31167080, 40517204, 50646505, 57881720, 81034408, 101293010, 202586020, 405172040]

約数ペア:

[(1, 405172040), (2, 202586020), (4, 101293010), (5, 81034408), (7, 57881720), (8, 50646505), (10, 40517204), (13, 31167080), (14, 28940860), (20, 20258602), (26, 15583540), (28, 14470430), (35, 11576344), (40, 10129301), (52, 7791770), (56, 7235215), (65, 6233416), (70, 5788172), (79, 5128760), (91, 4452440), (104, 3895885), (130, 3116708), (140, 2894086), (158, 2564380), (182, 2226220), (260, 1558354), (280, 1447043), (316, 1282190), (364, 1113110), (395, 1025752), (455, 890488), (520, 779177), (553, 732680), (632, 641095), (728, 556555), (790, 512876), (910, 445244), (1027, 394520), (1106, 366340), (1409, 287560), (1580, 256438), (1820, 222622), (2054, 197260), (2212, 183170), (2765, 146536), (2818, 143780), (3160, 128219), (3640, 111311), (4108, 98630), (4424, 91585), (5135, 78904), (5530, 73268), (5636, 71890), (7045, 57512), (7189, 56360), (8216, 49315), (9863, 41080), (10270, 39452), (11060, 36634), (11272, 35945), (14090, 28756), (14378, 28180), (18317, 22120), (19726, 20540)]