78878340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1$

素因数の和:183

約数の個数: 144

約数和(自身を含む): 254419200

約数和(自身を除く): 175540860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 79, 86, 90, 108, 129, 135, 158, 172, 180, 215, 237, 258, 270, 316, 387, 395, 430, 474, 516, 540, 645, 711, 774, 790, 860, 948, 1161, 1185, 1290, 1422, 1548, 1580, 1849, 1935, 2133, 2322, 2370, 2580, 2844, 3397, 3555, 3698, 3870, 4266, 4644, 4740, 5547, 5805, 6794, 7110, 7396, 7740, 8532, 9245, 10191, 10665, 11094, 11610, 13588, 14220, 16641, 16985, 18490, 20382, 21330, 22188, 23220, 27735, 30573, 33282, 33970, 36980, 40764, 42660, 49923, 50955, 55470, 61146, 66564, 67940, 83205, 91719, 99846, 101910, 110940, 122292, 146071, 152865, 166410, 183438, 199692, 203820, 249615, 292142, 305730, 332820, 366876, 438213, 458595, 499230, 584284, 611460, 730355, 876426, 917190, 998460, 1314639, 1460710, 1752852, 1834380, 2191065, 2629278, 2921420, 3943917, 4382130, 5258556, 6573195, 7887834, 8764260, 13146390, 15775668, 19719585, 26292780, 39439170, 78878340]

約数ペア:

[(1, 78878340), (2, 39439170), (3, 26292780), (4, 19719585), (5, 15775668), (6, 13146390), (9, 8764260), (10, 7887834), (12, 6573195), (15, 5258556), (18, 4382130), (20, 3943917), (27, 2921420), (30, 2629278), (36, 2191065), (43, 1834380), (45, 1752852), (54, 1460710), (60, 1314639), (79, 998460), (86, 917190), (90, 876426), (108, 730355), (129, 611460), (135, 584284), (158, 499230), (172, 458595), (180, 438213), (215, 366876), (237, 332820), (258, 305730), (270, 292142), (316, 249615), (387, 203820), (395, 199692), (430, 183438), (474, 166410), (516, 152865), (540, 146071), (645, 122292), (711, 110940), (774, 101910), (790, 99846), (860, 91719), (948, 83205), (1161, 67940), (1185, 66564), (1290, 61146), (1422, 55470), (1548, 50955), (1580, 49923), (1849, 42660), (1935, 40764), (2133, 36980), (2322, 33970), (2370, 33282), (2580, 30573), (2844, 27735), (3397, 23220), (3555, 22188), (3698, 21330), (3870, 20382), (4266, 18490), (4644, 16985), (4740, 16641), (5547, 14220), (5805, 13588), (6794, 11610), (7110, 11094), (7396, 10665), (7740, 10191), (8532, 9245)]