20193889244

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:819

約数の個数: 96

約数和(自身を含む): 38950813440

約数和(自身を除く): 18756924196

約数列:

[1, 2, 4, 19, 38, 41, 67, 76, 82, 134, 164, 197, 268, 394, 491, 779, 788, 982, 1273, 1558, 1964, 2546, 2747, 3116, 3743, 5092, 5494, 7486, 8077, 9329, 10988, 13199, 14972, 16154, 18658, 20131, 26398, 32308, 32897, 37316, 40262, 52193, 52796, 65794, 80524, 96727, 104386, 131588, 153463, 193454, 208772, 250781, 306926, 382489, 386908, 501562, 541159, 613852, 625043, 764978, 1003124, 1082318, 1250086, 1348777, 1529956, 1837813, 2164636, 2500172, 2697554, 3675626, 3965807, 5395108, 6480709, 7351252, 7931614, 10282021, 12961418, 15863228, 20564042, 25626763, 25922836, 41128084, 51253526, 75350333, 102507052, 123133471, 150700666, 246266942, 265709069, 301401332, 492533884, 531418138, 1062836276, 5048472311, 10096944622, 20193889244]

約数ペア:

[(1, 20193889244), (2, 10096944622), (4, 5048472311), (19, 1062836276), (38, 531418138), (41, 492533884), (67, 301401332), (76, 265709069), (82, 246266942), (134, 150700666), (164, 123133471), (197, 102507052), (268, 75350333), (394, 51253526), (491, 41128084), (779, 25922836), (788, 25626763), (982, 20564042), (1273, 15863228), (1558, 12961418), (1964, 10282021), (2546, 7931614), (2747, 7351252), (3116, 6480709), (3743, 5395108), (5092, 3965807), (5494, 3675626), (7486, 2697554), (8077, 2500172), (9329, 2164636), (10988, 1837813), (13199, 1529956), (14972, 1348777), (16154, 1250086), (18658, 1082318), (20131, 1003124), (26398, 764978), (32308, 625043), (32897, 613852), (37316, 541159), (40262, 501562), (52193, 386908), (52796, 382489), (65794, 306926), (80524, 250781), (96727, 208772), (104386, 193454), (131588, 153463)]