19029970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 39315456

約数和(自身を除く): 20285486

約数列:

[1, 2, 5, 10, 17, 23, 31, 34, 46, 62, 85, 115, 155, 157, 170, 230, 310, 314, 391, 527, 713, 782, 785, 1054, 1426, 1570, 1955, 2635, 2669, 3565, 3611, 3910, 4867, 5270, 5338, 7130, 7222, 9734, 12121, 13345, 18055, 24242, 24335, 26690, 36110, 48670, 60605, 61387, 82739, 111941, 121210, 122774, 165478, 223882, 306935, 413695, 559705, 613870, 827390, 1119410, 1902997, 3805994, 9514985, 19029970]

約数ペア:

[(1, 19029970), (2, 9514985), (5, 3805994), (10, 1902997), (17, 1119410), (23, 827390), (31, 613870), (34, 559705), (46, 413695), (62, 306935), (85, 223882), (115, 165478), (155, 122774), (157, 121210), (170, 111941), (230, 82739), (310, 61387), (314, 60605), (391, 48670), (527, 36110), (713, 26690), (782, 24335), (785, 24242), (1054, 18055), (1426, 13345), (1570, 12121), (1955, 9734), (2635, 7222), (2669, 7130), (3565, 5338), (3611, 5270), (3910, 4867)]