198436140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157489}}^1$

素因数の和:157511

約数の個数: 72

約数和(自身を含む): 687916320

約数和(自身を除く): 489480180

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, 630, 1260, 157489, 314978, 472467, 629956, 787445, 944934, 1102423, 1417401, 1574890, 1889868, 2204846, 2362335, 2834802, 3149780, 3307269, 4409692, 4724670, 5512115, 5669604, 6614538, 7087005, 9449340, 9921807, 11024230, 13229076, 14174010, 16536345, 19843614, 22048460, 28348020, 33072690, 39687228, 49609035, 66145380, 99218070, 198436140]

約数ペア:

[(1, 198436140), (2, 99218070), (3, 66145380), (4, 49609035), (5, 39687228), (6, 33072690), (7, 28348020), (9, 22048460), (10, 19843614), (12, 16536345), (14, 14174010), (15, 13229076), (18, 11024230), (20, 9921807), (21, 9449340), (28, 7087005), (30, 6614538), (35, 5669604), (36, 5512115), (42, 4724670), (45, 4409692), (60, 3307269), (63, 3149780), (70, 2834802), (84, 2362335), (90, 2204846), (105, 1889868), (126, 1574890), (140, 1417401), (180, 1102423), (210, 944934), (252, 787445), (315, 629956), (420, 472467), (630, 314978), (1260, 157489)]