78870820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1133

約数の個数: 96

約数和(自身を含む): 207083520

約数和(自身を除く): 128212700

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 310, 340, 434, 476, 527, 595, 620, 868, 1054, 1069, 1085, 1190, 2108, 2138, 2170, 2380, 2635, 3689, 4276, 4340, 5270, 5345, 7378, 7483, 10540, 10690, 14756, 14966, 18173, 18445, 21380, 29932, 33139, 36346, 36890, 37415, 66278, 72692, 73780, 74830, 90865, 127211, 132556, 149660, 165695, 181730, 231973, 254422, 331390, 363460, 463946, 508844, 563363, 636055, 662780, 927892, 1126726, 1159865, 1272110, 2253452, 2319730, 2544220, 2816815, 3943541, 4639460, 5633630, 7887082, 11267260, 15774164, 19717705, 39435410, 78870820]

約数ペア:

[(1, 78870820), (2, 39435410), (4, 19717705), (5, 15774164), (7, 11267260), (10, 7887082), (14, 5633630), (17, 4639460), (20, 3943541), (28, 2816815), (31, 2544220), (34, 2319730), (35, 2253452), (62, 1272110), (68, 1159865), (70, 1126726), (85, 927892), (119, 662780), (124, 636055), (140, 563363), (155, 508844), (170, 463946), (217, 363460), (238, 331390), (310, 254422), (340, 231973), (434, 181730), (476, 165695), (527, 149660), (595, 132556), (620, 127211), (868, 90865), (1054, 74830), (1069, 73780), (1085, 72692), (1190, 66278), (2108, 37415), (2138, 36890), (2170, 36346), (2380, 33139), (2635, 29932), (3689, 21380), (4276, 18445), (4340, 18173), (5270, 14966), (5345, 14756), (7378, 10690), (7483, 10540)]