19802019970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{359}}^1\times {\mathrm{10427}}^1$

素因数の和:10839

約数の個数: 48

約数和(自身を含む): 37368112320

約数和(自身を除く): 17566092350

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 359, 529, 718, 1058, 1795, 2645, 3590, 5290, 8257, 10427, 16514, 20854, 41285, 52135, 82570, 104270, 189911, 239821, 379822, 479642, 949555, 1199105, 1899110, 2398210, 3743293, 5515883, 7486586, 11031766, 18716465, 27579415, 37432930, 55158830, 86095739, 172191478, 430478695, 860957390, 1980201997, 3960403994, 9901009985, 19802019970]

約数ペア:

[(1, 19802019970), (2, 9901009985), (5, 3960403994), (10, 1980201997), (23, 860957390), (46, 430478695), (115, 172191478), (230, 86095739), (359, 55158830), (529, 37432930), (718, 27579415), (1058, 18716465), (1795, 11031766), (2645, 7486586), (3590, 5515883), (5290, 3743293), (8257, 2398210), (10427, 1899110), (16514, 1199105), (20854, 949555), (41285, 479642), (52135, 379822), (82570, 239821), (104270, 189911)]