20216057820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{397}}^1\times {\mathrm{461}}^1$

素因数の和:1140

約数の個数: 192

約数和(自身を含む): 65242146816

約数和(自身を除く): 45026088996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 263, 397, 420, 461, 526, 789, 794, 922, 1052, 1191, 1315, 1383, 1578, 1588, 1841, 1844, 1985, 2305, 2382, 2630, 2766, 2779, 3156, 3227, 3682, 3945, 3970, 4610, 4764, 5260, 5523, 5532, 5558, 5955, 6454, 6915, 7364, 7890, 7940, 8337, 9205, 9220, 9681, 11046, 11116, 11910, 12908, 13830, 13895, 15780, 16135, 16674, 18410, 19362, 22092, 23820, 27615, 27660, 27790, 32270, 33348, 36820, 38724, 41685, 48405, 55230, 55580, 64540, 83370, 96810, 104411, 110460, 121243, 166740, 183017, 193620, 208822, 242486, 313233, 363729, 366034, 417644, 484972, 522055, 549051, 606215, 626466, 727458, 730877, 732068, 848701, 915085, 1044110, 1098102, 1212430, 1252932, 1281119, 1454916, 1461754, 1566165, 1697402, 1818645, 1830170, 2088220, 2192631, 2196204, 2424860, 2546103, 2562238, 2745255, 2923508, 3132330, 3394804, 3637290, 3654385, 3660340, 3843357, 4243505, 4385262, 5092206, 5124476, 5490510, 6264660, 6405595, 7274580, 7308770, 7686714, 8487010, 8770524, 10184412, 10963155, 10981020, 12730515, 12811190, 14617540, 15373428, 16974020, 19216785, 21926310, 25461030, 25622380, 38433570, 43852620, 48133471, 50922060, 76867140, 96266942, 144400413, 192533884, 240667355, 288800826, 336934297, 481334710, 577601652, 673868594, 722002065, 962669420, 1010802891, 1347737188, 1444004130, 1684671485, 2021605782, 2888008260, 3369342970, 4043211564, 5054014455, 6738685940, 10108028910, 20216057820]

約数ペア:

[(1, 20216057820), (2, 10108028910), (3, 6738685940), (4, 5054014455), (5, 4043211564), (6, 3369342970), (7, 2888008260), (10, 2021605782), (12, 1684671485), (14, 1444004130), (15, 1347737188), (20, 1010802891), (21, 962669420), (28, 722002065), (30, 673868594), (35, 577601652), (42, 481334710), (60, 336934297), (70, 288800826), (84, 240667355), (105, 192533884), (140, 144400413), (210, 96266942), (263, 76867140), (397, 50922060), (420, 48133471), (461, 43852620), (526, 38433570), (789, 25622380), (794, 25461030), (922, 21926310), (1052, 19216785), (1191, 16974020), (1315, 15373428), (1383, 14617540), (1578, 12811190), (1588, 12730515), (1841, 10981020), (1844, 10963155), (1985, 10184412), (2305, 8770524), (2382, 8487010), (2630, 7686714), (2766, 7308770), (2779, 7274580), (3156, 6405595), (3227, 6264660), (3682, 5490510), (3945, 5124476), (3970, 5092206), (4610, 4385262), (4764, 4243505), (5260, 3843357), (5523, 3660340), (5532, 3654385), (5558, 3637290), (5955, 3394804), (6454, 3132330), (6915, 2923508), (7364, 2745255), (7890, 2562238), (7940, 2546103), (8337, 2424860), (9205, 2196204), (9220, 2192631), (9681, 2088220), (11046, 1830170), (11116, 1818645), (11910, 1697402), (12908, 1566165), (13830, 1461754), (13895, 1454916), (15780, 1281119), (16135, 1252932), (16674, 1212430), (18410, 1098102), (19362, 1044110), (22092, 915085), (23820, 848701), (27615, 732068), (27660, 730877), (27790, 727458), (32270, 626466), (33348, 606215), (36820, 549051), (38724, 522055), (41685, 484972), (48405, 417644), (55230, 366034), (55580, 363729), (64540, 313233), (83370, 242486), (96810, 208822), (104411, 193620), (110460, 183017), (121243, 166740)]