398375460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{751}}^1$

素因数の和:1194

約数の個数: 144

約数和(自身を含む): 1386158592

約数和(自身を除く): 987783132

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 421, 630, 751, 842, 1260, 1263, 1502, 1684, 2105, 2253, 2526, 2947, 3004, 3755, 3789, 4210, 4506, 5052, 5257, 5894, 6315, 6759, 7510, 7578, 8420, 8841, 9012, 10514, 11265, 11788, 12630, 13518, 14735, 15020, 15156, 15771, 17682, 18945, 21028, 22530, 25260, 26285, 26523, 27036, 29470, 31542, 33795, 35364, 37890, 44205, 45060, 47313, 52570, 53046, 58940, 63084, 67590, 75780, 78855, 88410, 94626, 105140, 106092, 132615, 135180, 157710, 176820, 189252, 236565, 265230, 315420, 316171, 473130, 530460, 632342, 946260, 948513, 1264684, 1580855, 1897026, 2213197, 2845539, 3161710, 3794052, 4426394, 4742565, 5691078, 6323420, 6639591, 8852788, 9485130, 11065985, 11382156, 13279182, 14227695, 18970260, 19918773, 22131970, 26558364, 28455390, 33197955, 39837546, 44263940, 56910780, 66395910, 79675092, 99593865, 132791820, 199187730, 398375460]

約数ペア:

[(1, 398375460), (2, 199187730), (3, 132791820), (4, 99593865), (5, 79675092), (6, 66395910), (7, 56910780), (9, 44263940), (10, 39837546), (12, 33197955), (14, 28455390), (15, 26558364), (18, 22131970), (20, 19918773), (21, 18970260), (28, 14227695), (30, 13279182), (35, 11382156), (36, 11065985), (42, 9485130), (45, 8852788), (60, 6639591), (63, 6323420), (70, 5691078), (84, 4742565), (90, 4426394), (105, 3794052), (126, 3161710), (140, 2845539), (180, 2213197), (210, 1897026), (252, 1580855), (315, 1264684), (420, 948513), (421, 946260), (630, 632342), (751, 530460), (842, 473130), (1260, 316171), (1263, 315420), (1502, 265230), (1684, 236565), (2105, 189252), (2253, 176820), (2526, 157710), (2947, 135180), (3004, 132615), (3755, 106092), (3789, 105140), (4210, 94626), (4506, 88410), (5052, 78855), (5257, 75780), (5894, 67590), (6315, 63084), (6759, 58940), (7510, 53046), (7578, 52570), (8420, 47313), (8841, 45060), (9012, 44205), (10514, 37890), (11265, 35364), (11788, 33795), (12630, 31542), (13518, 29470), (14735, 27036), (15020, 26523), (15156, 26285), (15771, 25260), (17682, 22530), (18945, 21028)]