81445065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 146990592

約数和(自身を除く): 65545527

約数列:

[1, 3, 5, 13, 15, 39, 41, 61, 65, 123, 167, 183, 195, 205, 305, 501, 533, 615, 793, 835, 915, 1599, 2171, 2379, 2501, 2505, 2665, 3965, 6513, 6847, 7503, 7995, 10187, 10855, 11895, 12505, 20541, 30561, 32513, 32565, 34235, 37515, 50935, 89011, 97539, 102705, 132431, 152805, 162565, 267033, 397293, 417667, 445055, 487695, 662155, 1253001, 1335165, 1986465, 2088335, 5429671, 6265005, 16289013, 27148355, 81445065]

約数ペア:

[(1, 81445065), (3, 27148355), (5, 16289013), (13, 6265005), (15, 5429671), (39, 2088335), (41, 1986465), (61, 1335165), (65, 1253001), (123, 662155), (167, 487695), (183, 445055), (195, 417667), (205, 397293), (305, 267033), (501, 162565), (533, 152805), (615, 132431), (793, 102705), (835, 97539), (915, 89011), (1599, 50935), (2171, 37515), (2379, 34235), (2501, 32565), (2505, 32513), (2665, 30561), (3965, 20541), (6513, 12505), (6847, 11895), (7503, 10855), (7995, 10187)]