20170104220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{463}}^1\times {\mathrm{44453}}^1$

素因数の和:44939

約数の個数: 72

約数和(自身を含む): 49380214464

約数和(自身を除く): 29210110244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 463, 490, 926, 980, 1852, 2315, 3241, 4630, 6482, 9260, 12964, 16205, 22687, 32410, 44453, 45374, 64820, 88906, 90748, 113435, 177812, 222265, 226870, 311171, 444530, 453740, 622342, 889060, 1244684, 1555855, 2178197, 3111710, 4356394, 6223420, 8712788, 10890985, 20581739, 21781970, 41163478, 43563940, 82326956, 102908695, 144072173, 205817390, 288144346, 411634780, 576288692, 720360865, 1008505211, 1440721730, 2017010422, 2881443460, 4034020844, 5042526055, 10085052110, 20170104220]

約数ペア:

[(1, 20170104220), (2, 10085052110), (4, 5042526055), (5, 4034020844), (7, 2881443460), (10, 2017010422), (14, 1440721730), (20, 1008505211), (28, 720360865), (35, 576288692), (49, 411634780), (70, 288144346), (98, 205817390), (140, 144072173), (196, 102908695), (245, 82326956), (463, 43563940), (490, 41163478), (926, 21781970), (980, 20581739), (1852, 10890985), (2315, 8712788), (3241, 6223420), (4630, 4356394), (6482, 3111710), (9260, 2178197), (12964, 1555855), (16205, 1244684), (22687, 889060), (32410, 622342), (44453, 453740), (45374, 444530), (64820, 311171), (88906, 226870), (90748, 222265), (113435, 177812)]