198395820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157457}}^1$

素因数の和:157479

約数の個数: 72

約数和(自身を含む): 687776544

約数和(自身を除く): 489380724

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, 157457, 314914, 472371, 629828, 787285, 944742, 1102199, 1417113, 1574570, 1889484, 2204398, 2361855, 2834226, 3149140, 3306597, 4408796, 4723710, 5510995, 5668452, 6613194, 7085565, 9447420, 9919791, 11021990, 13226388, 14171130, 16532985, 19839582, 22043980, 28342260, 33065970, 39679164, 49598955, 66131940, 99197910, 198395820]

約数ペア:

[(1, 198395820), (2, 99197910), (3, 66131940), (4, 49598955), (5, 39679164), (6, 33065970), (7, 28342260), (9, 22043980), (10, 19839582), (12, 16532985), (14, 14171130), (15, 13226388), (18, 11021990), (20, 9919791), (21, 9447420), (28, 7085565), (30, 6613194), (35, 5668452), (36, 5510995), (42, 4723710), (45, 4408796), (60, 3306597), (63, 3149140), (70, 2834226), (84, 2361855), (90, 2204398), (105, 1889484), (126, 1574570), (140, 1417113), (180, 1102199), (210, 944742), (252, 787285), (315, 629828), (420, 472371), (630, 314914), (1260, 157457)]