278317098

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^2$

素因数の和:340

約数の個数: 72

約数和(自身を含む): 655543044

約数和(自身を除く): 377225946

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 53, 102, 106, 131, 153, 159, 262, 306, 318, 393, 477, 786, 901, 954, 1179, 1802, 2227, 2358, 2703, 4454, 5406, 6681, 6943, 8109, 13362, 13886, 16218, 17161, 20043, 20829, 34322, 40086, 41658, 51483, 62487, 102966, 118031, 124974, 154449, 236062, 291737, 308898, 354093, 583474, 708186, 875211, 909533, 1062279, 1750422, 1819066, 2124558, 2625633, 2728599, 5251266, 5457198, 8185797, 15462061, 16371594, 30924122, 46386183, 92772366, 139158549, 278317098]

約数ペア:

[(1, 278317098), (2, 139158549), (3, 92772366), (6, 46386183), (9, 30924122), (17, 16371594), (18, 15462061), (34, 8185797), (51, 5457198), (53, 5251266), (102, 2728599), (106, 2625633), (131, 2124558), (153, 1819066), (159, 1750422), (262, 1062279), (306, 909533), (318, 875211), (393, 708186), (477, 583474), (786, 354093), (901, 308898), (954, 291737), (1179, 236062), (1802, 154449), (2227, 124974), (2358, 118031), (2703, 102966), (4454, 62487), (5406, 51483), (6681, 41658), (6943, 40086), (8109, 34322), (13362, 20829), (13886, 20043), (16218, 17161)]