18757788400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{18311}}^1$

素因数の和:18539

約数の個数: 120

約数和(自身を含む): 48781190304

約数和(自身を除く): 30023401904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 197, 200, 208, 260, 325, 394, 400, 520, 650, 788, 985, 1040, 1300, 1576, 1970, 2561, 2600, 3152, 3940, 4925, 5122, 5200, 7880, 9850, 10244, 12805, 15760, 18311, 19700, 20488, 25610, 36622, 39400, 40976, 51220, 64025, 73244, 78800, 91555, 102440, 128050, 146488, 183110, 204880, 238043, 256100, 292976, 366220, 457775, 476086, 512200, 732440, 915550, 952172, 1024400, 1190215, 1464880, 1831100, 1904344, 2380430, 3607267, 3662200, 3808688, 4760860, 5951075, 7214534, 7324400, 9521720, 11902150, 14429068, 18036335, 19043440, 23804300, 28858136, 36072670, 46894471, 47608600, 57716272, 72145340, 90181675, 93788942, 95217200, 144290680, 180363350, 187577884, 234472355, 288581360, 360726700, 375155768, 468944710, 721453400, 750311536, 937889420, 1172361775, 1442906800, 1875778840, 2344723550, 3751557680, 4689447100, 9378894200, 18757788400]

約数ペア:

[(1, 18757788400), (2, 9378894200), (4, 4689447100), (5, 3751557680), (8, 2344723550), (10, 1875778840), (13, 1442906800), (16, 1172361775), (20, 937889420), (25, 750311536), (26, 721453400), (40, 468944710), (50, 375155768), (52, 360726700), (65, 288581360), (80, 234472355), (100, 187577884), (104, 180363350), (130, 144290680), (197, 95217200), (200, 93788942), (208, 90181675), (260, 72145340), (325, 57716272), (394, 47608600), (400, 46894471), (520, 36072670), (650, 28858136), (788, 23804300), (985, 19043440), (1040, 18036335), (1300, 14429068), (1576, 11902150), (1970, 9521720), (2561, 7324400), (2600, 7214534), (3152, 5951075), (3940, 4760860), (4925, 3808688), (5122, 3662200), (5200, 3607267), (7880, 2380430), (9850, 1904344), (10244, 1831100), (12805, 1464880), (15760, 1190215), (18311, 1024400), (19700, 952172), (20488, 915550), (25610, 732440), (36622, 512200), (39400, 476086), (40976, 457775), (51220, 366220), (64025, 292976), (73244, 256100), (78800, 238043), (91555, 204880), (102440, 183110), (128050, 146488)]