2451990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 6175152

約数和(自身を除く): 3723162

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 47, 74, 94, 111, 141, 185, 222, 235, 282, 370, 470, 555, 705, 1110, 1410, 1739, 2209, 3478, 4418, 5217, 6627, 8695, 10434, 11045, 13254, 17390, 22090, 26085, 33135, 52170, 66270, 81733, 163466, 245199, 408665, 490398, 817330, 1225995, 2451990]

約数ペア:

[(1, 2451990), (2, 1225995), (3, 817330), (5, 490398), (6, 408665), (10, 245199), (15, 163466), (30, 81733), (37, 66270), (47, 52170), (74, 33135), (94, 26085), (111, 22090), (141, 17390), (185, 13254), (222, 11045), (235, 10434), (282, 8695), (370, 6627), (470, 5217), (555, 4418), (705, 3478), (1110, 2209), (1410, 1739)]