2141990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 4112640

約数和(自身を除く): 1970650

約数列:

[1, 2, 5, 10, 23, 46, 67, 115, 134, 139, 230, 278, 335, 670, 695, 1390, 1541, 3082, 3197, 6394, 7705, 9313, 15410, 15985, 18626, 31970, 46565, 93130, 214199, 428398, 1070995, 2141990]

約数ペア:

[(1, 2141990), (2, 1070995), (5, 428398), (10, 214199), (23, 93130), (46, 46565), (67, 31970), (115, 18626), (134, 15985), (139, 15410), (230, 9313), (278, 7705), (335, 6394), (670, 3197), (695, 3082), (1390, 1541)]