19191830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 40998960

約数和(自身を除く): 21807130

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 530, 739, 742, 1478, 1855, 2597, 3695, 3710, 5173, 5194, 7390, 10346, 12985, 25865, 25970, 36211, 39167, 51730, 72422, 78334, 181055, 195835, 274169, 362110, 391670, 548338, 1370845, 1919183, 2741690, 3838366, 9595915, 19191830]

約数ペア:

[(1, 19191830), (2, 9595915), (5, 3838366), (7, 2741690), (10, 1919183), (14, 1370845), (35, 548338), (49, 391670), (53, 362110), (70, 274169), (98, 195835), (106, 181055), (245, 78334), (265, 72422), (371, 51730), (490, 39167), (530, 36211), (739, 25970), (742, 25865), (1478, 12985), (1855, 10346), (2597, 7390), (3695, 5194), (3710, 5173)]