208759995

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1420

約数の個数: 48

約数和(自身を含む): 374306400

約数和(自身を除く): 165546405

約数列:

[1, 3, 5, 9, 15, 45, 59, 61, 177, 183, 295, 305, 531, 549, 885, 915, 1289, 2655, 2745, 3599, 3867, 6445, 10797, 11601, 17995, 19335, 32391, 53985, 58005, 76051, 78629, 161955, 228153, 235887, 380255, 393145, 684459, 707661, 1140765, 1179435, 3422295, 3538305, 4639111, 13917333, 23195555, 41751999, 69586665, 208759995]

約数ペア:

[(1, 208759995), (3, 69586665), (5, 41751999), (9, 23195555), (15, 13917333), (45, 4639111), (59, 3538305), (61, 3422295), (177, 1179435), (183, 1140765), (295, 707661), (305, 684459), (531, 393145), (549, 380255), (885, 235887), (915, 228153), (1289, 161955), (2655, 78629), (2745, 76051), (3599, 58005), (3867, 53985), (6445, 32391), (10797, 19335), (11601, 17995)]