217408035

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 390168576

約数和(自身を除く): 172760541

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 71, 123, 195, 205, 213, 355, 383, 533, 615, 923, 1065, 1149, 1599, 1915, 2665, 2769, 2911, 4615, 4979, 5745, 7995, 8733, 13845, 14555, 14937, 15703, 24895, 27193, 37843, 43665, 47109, 74685, 78515, 81579, 113529, 135965, 189215, 204139, 235545, 353509, 407895, 567645, 612417, 1020695, 1060527, 1114913, 1767545, 3062085, 3344739, 5302635, 5574565, 14493869, 16723695, 43481607, 72469345, 217408035]

約数ペア:

[(1, 217408035), (3, 72469345), (5, 43481607), (13, 16723695), (15, 14493869), (39, 5574565), (41, 5302635), (65, 3344739), (71, 3062085), (123, 1767545), (195, 1114913), (205, 1060527), (213, 1020695), (355, 612417), (383, 567645), (533, 407895), (615, 353509), (923, 235545), (1065, 204139), (1149, 189215), (1599, 135965), (1915, 113529), (2665, 81579), (2769, 78515), (2911, 74685), (4615, 47109), (4979, 43665), (5745, 37843), (7995, 27193), (8733, 24895), (13845, 15703), (14555, 14937)]