198654820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:570

約数の個数: 144

約数和(自身を含む): 540546048

約数和(自身を除く): 341891228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 434, 455, 490, 503, 620, 637, 806, 868, 910, 980, 1006, 1085, 1274, 1519, 1612, 1820, 2012, 2015, 2170, 2515, 2548, 2821, 3038, 3185, 3521, 4030, 4340, 5030, 5642, 6076, 6370, 6539, 7042, 7595, 8060, 10060, 11284, 12740, 13078, 14084, 14105, 15190, 15593, 17605, 19747, 24647, 26156, 28210, 30380, 31186, 32695, 35210, 39494, 45773, 49294, 56420, 62372, 65390, 70420, 77965, 78988, 91546, 98588, 98735, 109151, 123235, 130780, 155930, 183092, 197470, 202709, 218302, 228865, 246470, 311860, 320411, 394940, 405418, 436604, 457730, 492940, 545755, 640822, 764057, 810836, 915460, 1013545, 1091510, 1281644, 1418963, 1528114, 1602055, 2027090, 2183020, 2837926, 3056228, 3204110, 3820285, 4054180, 5675852, 6408220, 7094815, 7640570, 9932741, 14189630, 15281140, 19865482, 28379260, 39730964, 49663705, 99327410, 198654820]

約数ペア:

[(1, 198654820), (2, 99327410), (4, 49663705), (5, 39730964), (7, 28379260), (10, 19865482), (13, 15281140), (14, 14189630), (20, 9932741), (26, 7640570), (28, 7094815), (31, 6408220), (35, 5675852), (49, 4054180), (52, 3820285), (62, 3204110), (65, 3056228), (70, 2837926), (91, 2183020), (98, 2027090), (124, 1602055), (130, 1528114), (140, 1418963), (155, 1281644), (182, 1091510), (196, 1013545), (217, 915460), (245, 810836), (260, 764057), (310, 640822), (364, 545755), (403, 492940), (434, 457730), (455, 436604), (490, 405418), (503, 394940), (620, 320411), (637, 311860), (806, 246470), (868, 228865), (910, 218302), (980, 202709), (1006, 197470), (1085, 183092), (1274, 155930), (1519, 130780), (1612, 123235), (1820, 109151), (2012, 98735), (2015, 98588), (2170, 91546), (2515, 78988), (2548, 77965), (2821, 70420), (3038, 65390), (3185, 62372), (3521, 56420), (4030, 49294), (4340, 45773), (5030, 39494), (5642, 35210), (6076, 32695), (6370, 31186), (6539, 30380), (7042, 28210), (7595, 26156), (8060, 24647), (10060, 19747), (11284, 17605), (12740, 15593), (13078, 15190), (14084, 14105)]