18804947805

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{448859}}^1$

素因数の和:448903

約数の個数: 72

約数和(自身を含む): 39912631200

約数和(自身を除く): 21107683395

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 49, 57, 63, 95, 105, 133, 147, 171, 245, 285, 315, 399, 441, 665, 735, 855, 931, 1197, 1995, 2205, 2793, 4655, 5985, 8379, 13965, 41895, 448859, 1346577, 2244295, 3142013, 4039731, 6732885, 8528321, 9426039, 15710065, 20198655, 21994091, 25584963, 28278117, 42641605, 47130195, 59698247, 65982273, 76754889, 109970455, 127924815, 141390585, 179094741, 197946819, 298491235, 329911365, 383774445, 417887729, 537284223, 895473705, 989734095, 1253663187, 2089438645, 2686421115, 3760989561, 6268315935, 18804947805]

約数ペア:

[(1, 18804947805), (3, 6268315935), (5, 3760989561), (7, 2686421115), (9, 2089438645), (15, 1253663187), (19, 989734095), (21, 895473705), (35, 537284223), (45, 417887729), (49, 383774445), (57, 329911365), (63, 298491235), (95, 197946819), (105, 179094741), (133, 141390585), (147, 127924815), (171, 109970455), (245, 76754889), (285, 65982273), (315, 59698247), (399, 47130195), (441, 42641605), (665, 28278117), (735, 25584963), (855, 21994091), (931, 20198655), (1197, 15710065), (1995, 9426039), (2205, 8528321), (2793, 6732885), (4655, 4039731), (5985, 3142013), (8379, 2244295), (13965, 1346577), (41895, 448859)]