28775025

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 55710720

約数和(自身を除く): 26935695

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 53, 57, 75, 95, 127, 159, 171, 225, 265, 285, 381, 475, 477, 635, 795, 855, 1007, 1143, 1325, 1425, 1905, 2385, 2413, 3021, 3175, 3975, 4275, 5035, 5715, 6731, 7239, 9063, 9525, 11925, 12065, 15105, 20193, 21717, 25175, 28575, 33655, 36195, 45315, 60325, 60579, 75525, 100965, 108585, 127889, 168275, 180975, 226575, 302895, 383667, 504825, 542925, 639445, 1151001, 1514475, 1918335, 3197225, 5755005, 9591675, 28775025]

約数ペア:

[(1, 28775025), (3, 9591675), (5, 5755005), (9, 3197225), (15, 1918335), (19, 1514475), (25, 1151001), (45, 639445), (53, 542925), (57, 504825), (75, 383667), (95, 302895), (127, 226575), (159, 180975), (171, 168275), (225, 127889), (265, 108585), (285, 100965), (381, 75525), (475, 60579), (477, 60325), (635, 45315), (795, 36195), (855, 33655), (1007, 28575), (1143, 25175), (1325, 21717), (1425, 20193), (1905, 15105), (2385, 12065), (2413, 11925), (3021, 9525), (3175, 9063), (3975, 7239), (4275, 6731), (5035, 5715)]