20803488680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1290539}}^1$

素因数の和:1290594

約数の個数: 64

約数和(自身を含む): 52034572800

約数和(自身を除く): 31231084120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 1290539, 2581078, 5162156, 6452695, 10324312, 12905390, 16777007, 25810780, 33554014, 40006709, 51621560, 67108028, 80013418, 83885035, 134216056, 160026836, 167770070, 200033545, 320053672, 335540140, 400067090, 520087217, 671080280, 800134180, 1040174434, 1600268360, 2080348868, 2600436085, 4160697736, 5200872170, 10401744340, 20803488680]

約数ペア:

[(1, 20803488680), (2, 10401744340), (4, 5200872170), (5, 4160697736), (8, 2600436085), (10, 2080348868), (13, 1600268360), (20, 1040174434), (26, 800134180), (31, 671080280), (40, 520087217), (52, 400067090), (62, 335540140), (65, 320053672), (104, 200033545), (124, 167770070), (130, 160026836), (155, 134216056), (248, 83885035), (260, 80013418), (310, 67108028), (403, 51621560), (520, 40006709), (620, 33554014), (806, 25810780), (1240, 16777007), (1612, 12905390), (2015, 10324312), (3224, 6452695), (4030, 5162156), (8060, 2581078), (16120, 1290539)]