28375425

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 55855800

約数和(自身を除く): 27480375

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 89, 109, 117, 195, 225, 267, 325, 327, 445, 545, 585, 801, 975, 981, 1157, 1335, 1417, 1635, 2225, 2725, 2925, 3471, 4005, 4251, 4905, 5785, 6675, 7085, 8175, 9701, 10413, 12753, 17355, 20025, 21255, 24525, 28925, 29103, 35425, 48505, 52065, 63765, 86775, 87309, 106275, 126113, 145515, 242525, 260325, 318825, 378339, 436545, 630565, 727575, 1135017, 1891695, 2182725, 3152825, 5675085, 9458475, 28375425]

約数ペア:

[(1, 28375425), (3, 9458475), (5, 5675085), (9, 3152825), (13, 2182725), (15, 1891695), (25, 1135017), (39, 727575), (45, 630565), (65, 436545), (75, 378339), (89, 318825), (109, 260325), (117, 242525), (195, 145515), (225, 126113), (267, 106275), (325, 87309), (327, 86775), (445, 63765), (545, 52065), (585, 48505), (801, 35425), (975, 29103), (981, 28925), (1157, 24525), (1335, 21255), (1417, 20025), (1635, 17355), (2225, 12753), (2725, 10413), (2925, 9701), (3471, 8175), (4005, 7085), (4251, 6675), (4905, 5785)]